81628560

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 480

約数和(自身を含む): 341228160

約数和(自身を除く): 259599600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 19, 20, 24, 26, 27, 30, 34, 36, 38, 39, 40, 45, 48, 51, 52, 54, 57, 60, 65, 68, 72, 76, 78, 80, 81, 85, 90, 95, 102, 104, 108, 114, 117, 120, 130, 135, 136, 144, 152, 153, 156, 162, 170, 171, 180, 190, 195, 204, 208, 216, 221, 228, 234, 240, 243, 247, 255, 260, 270, 272, 285, 304, 306, 312, 323, 324, 340, 342, 351, 360, 380, 390, 405, 408, 432, 442, 456, 459, 468, 486, 494, 510, 513, 520, 540, 570, 585, 612, 624, 646, 648, 663, 680, 684, 702, 720, 741, 760, 765, 780, 810, 816, 855, 884, 912, 918, 936, 969, 972, 988, 1020, 1026, 1040, 1053, 1080, 1105, 1140, 1170, 1215, 1224, 1235, 1292, 1296, 1326, 1360, 1368, 1377, 1404, 1482, 1520, 1530, 1539, 1560, 1615, 1620, 1710, 1755, 1768, 1836, 1872, 1938, 1944, 1976, 1989, 2040, 2052, 2106, 2160, 2210, 2223, 2280, 2295, 2340, 2430, 2448, 2470, 2565, 2584, 2652, 2736, 2754, 2808, 2907, 2964, 3060, 3078, 3120, 3159, 3230, 3240, 3315, 3420, 3510, 3536, 3672, 3705, 3876, 3888, 3952, 3978, 4080, 4104, 4131, 4199, 4212, 4420, 4446, 4560, 4590, 4617, 4680, 4845, 4860, 4940, 5130, 5168, 5265, 5304, 5508, 5616, 5814, 5928, 5967, 6120, 6156, 6318, 6460, 6480, 6630, 6669, 6840, 6885, 7020, 7344, 7410, 7695, 7752, 7956, 8208, 8262, 8398, 8424, 8721, 8840, 8892, 9180, 9234, 9360, 9690, 9720, 9880, 9945, 10260, 10530, 10608, 11016, 11115, 11628, 11856, 11934, 12240, 12312, 12597, 12636, 12920, 13260, 13338, 13680, 13770, 14040, 14535, 14820, 15390, 15504, 15795, 15912, 16524, 16796, 16848, 17442, 17680, 17784, 17901, 18360, 18468, 19380, 19440, 19760, 19890, 20007, 20520, 20655, 20995, 21060, 22032, 22230, 23085, 23256, 23868, 24624, 25194, 25272, 25840, 26163, 26520, 26676, 27540, 28080, 29070, 29640, 29835, 30780, 31590, 31824, 33048, 33345, 33592, 34884, 35568, 35802, 36720, 36936, 37791, 38760, 39780, 40014, 41040, 41310, 41990, 42120, 43605, 44460, 46170, 46512, 47736, 50388, 50544, 52326, 53040, 53352, 53703, 55080, 58140, 59280, 59670, 60021, 61560, 62985, 63180, 66096, 66690, 67184, 69768, 71604, 73872, 75582, 77520, 78489, 79560, 80028, 82620, 83980, 84240, 87210, 88920, 89505, 92340, 95472, 100035, 100776, 104652, 106704, 107406, 110160, 113373, 116280, 119340, 120042, 123120, 125970, 126360, 130815, 133380, 139536, 143208, 151164, 156978, 159120, 160056, 165240, 167960, 174420, 177840, 179010, 184680, 188955, 200070, 201552, 209304, 214812, 226746, 232560, 238680, 240084, 251940, 252720, 261630, 266760, 268515, 286416, 300105, 302328, 313956, 320112, 330480, 335920, 340119, 348840, 358020, 369360, 377910, 392445, 400140, 418608, 429624, 453492, 477360, 480168, 503880, 523260, 533520, 537030, 566865, 600210, 604656, 627912, 680238, 697680, 716040, 755820, 784890, 800280, 859248, 906984, 960336, 1007760, 1020357, 1046520, 1074060, 1133730, 1200420, 1255824, 1360476, 1432080, 1511640, 1569780, 1600560, 1700595, 1813968, 2040714, 2093040, 2148120, 2267460, 2400840, 2720952, 3023280, 3139560, 3401190, 4081428, 4296240, 4534920, 4801680, 5101785, 5441904, 6279120, 6802380, 8162856, 9069840, 10203570, 13604760, 16325712, 20407140, 27209520, 40814280, 81628560]

約数ペア:

[(1, 81628560), (2, 40814280), (3, 27209520), (4, 20407140), (5, 16325712), (6, 13604760), (8, 10203570), (9, 9069840), (10, 8162856), (12, 6802380), (13, 6279120), (15, 5441904), (16, 5101785), (17, 4801680), (18, 4534920), (19, 4296240), (20, 4081428), (24, 3401190), (26, 3139560), (27, 3023280), (30, 2720952), (34, 2400840), (36, 2267460), (38, 2148120), (39, 2093040), (40, 2040714), (45, 1813968), (48, 1700595), (51, 1600560), (52, 1569780), (54, 1511640), (57, 1432080), (60, 1360476), (65, 1255824), (68, 1200420), (72, 1133730), (76, 1074060), (78, 1046520), (80, 1020357), (81, 1007760), (85, 960336), (90, 906984), (95, 859248), (102, 800280), (104, 784890), (108, 755820), (114, 716040), (117, 697680), (120, 680238), (130, 627912), (135, 604656), (136, 600210), (144, 566865), (152, 537030), (153, 533520), (156, 523260), (162, 503880), (170, 480168), (171, 477360), (180, 453492), (190, 429624), (195, 418608), (204, 400140), (208, 392445), (216, 377910), (221, 369360), (228, 358020), (234, 348840), (240, 340119), (243, 335920), (247, 330480), (255, 320112), (260, 313956), (270, 302328), (272, 300105), (285, 286416), (304, 268515), (306, 266760), (312, 261630), (323, 252720), (324, 251940), (340, 240084), (342, 238680), (351, 232560), (360, 226746), (380, 214812), (390, 209304), (405, 201552), (408, 200070), (432, 188955), (442, 184680), (456, 179010), (459, 177840), (468, 174420), (486, 167960), (494, 165240), (510, 160056), (513, 159120), (520, 156978), (540, 151164), (570, 143208), (585, 139536), (612, 133380), (624, 130815), (646, 126360), (648, 125970), (663, 123120), (680, 120042), (684, 119340), (702, 116280), (720, 113373), (741, 110160), (760, 107406), (765, 106704), (780, 104652), (810, 100776), (816, 100035), (855, 95472), (884, 92340), (912, 89505), (918, 88920), (936, 87210), (969, 84240), (972, 83980), (988, 82620), (1020, 80028), (1026, 79560), (1040, 78489), (1053, 77520), (1080, 75582), (1105, 73872), (1140, 71604), (1170, 69768), (1215, 67184), (1224, 66690), (1235, 66096), (1292, 63180), (1296, 62985), (1326, 61560), (1360, 60021), (1368, 59670), (1377, 59280), (1404, 58140), (1482, 55080), (1520, 53703), (1530, 53352), (1539, 53040), (1560, 52326), (1615, 50544), (1620, 50388), (1710, 47736), (1755, 46512), (1768, 46170), (1836, 44460), (1872, 43605), (1938, 42120), (1944, 41990), (1976, 41310), (1989, 41040), (2040, 40014), (2052, 39780), (2106, 38760), (2160, 37791), (2210, 36936), (2223, 36720), (2280, 35802), (2295, 35568), (2340, 34884), (2430, 33592), (2448, 33345), (2470, 33048), (2565, 31824), (2584, 31590), (2652, 30780), (2736, 29835), (2754, 29640), (2808, 29070), (2907, 28080), (2964, 27540), (3060, 26676), (3078, 26520), (3120, 26163), (3159, 25840), (3230, 25272), (3240, 25194), (3315, 24624), (3420, 23868), (3510, 23256), (3536, 23085), (3672, 22230), (3705, 22032), (3876, 21060), (3888, 20995), (3952, 20655), (3978, 20520), (4080, 20007), (4104, 19890), (4131, 19760), (4199, 19440), (4212, 19380), (4420, 18468), (4446, 18360), (4560, 17901), (4590, 17784), (4617, 17680), (4680, 17442), (4845, 16848), (4860, 16796), (4940, 16524), (5130, 15912), (5168, 15795), (5265, 15504), (5304, 15390), (5508, 14820), (5616, 14535), (5814, 14040), (5928, 13770), (5967, 13680), (6120, 13338), (6156, 13260), (6318, 12920), (6460, 12636), (6480, 12597), (6630, 12312), (6669, 12240), (6840, 11934), (6885, 11856), (7020, 11628), (7344, 11115), (7410, 11016), (7695, 10608), (7752, 10530), (7956, 10260), (8208, 9945), (8262, 9880), (8398, 9720), (8424, 9690), (8721, 9360), (8840, 9234), (8892, 9180)]