20407140

素因数分解:

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

素因数の和:73

約数の個数: 288

約数和(自身を含む): 77051520

約数和(自身を除く): 56644380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 19, 20, 26, 27, 30, 34, 36, 38, 39, 45, 51, 52, 54, 57, 60, 65, 68, 76, 78, 81, 85, 90, 95, 102, 108, 114, 117, 130, 135, 153, 156, 162, 170, 171, 180, 190, 195, 204, 221, 228, 234, 243, 247, 255, 260, 270, 285, 306, 323, 324, 340, 342, 351, 380, 390, 405, 442, 459, 468, 486, 494, 510, 513, 540, 570, 585, 612, 646, 663, 684, 702, 741, 765, 780, 810, 855, 884, 918, 969, 972, 988, 1020, 1026, 1053, 1105, 1140, 1170, 1215, 1235, 1292, 1326, 1377, 1404, 1482, 1530, 1539, 1615, 1620, 1710, 1755, 1836, 1938, 1989, 2052, 2106, 2210, 2223, 2295, 2340, 2430, 2470, 2565, 2652, 2754, 2907, 2964, 3060, 3078, 3159, 3230, 3315, 3420, 3510, 3705, 3876, 3978, 4131, 4199, 4212, 4420, 4446, 4590, 4617, 4845, 4860, 4940, 5130, 5265, 5508, 5814, 5967, 6156, 6318, 6460, 6630, 6669, 6885, 7020, 7410, 7695, 7956, 8262, 8398, 8721, 8892, 9180, 9234, 9690, 9945, 10260, 10530, 11115, 11628, 11934, 12597, 12636, 13260, 13338, 13770, 14535, 14820, 15390, 15795, 16524, 16796, 17442, 17901, 18468, 19380, 19890, 20007, 20655, 20995, 21060, 22230, 23085, 23868, 25194, 26163, 26676, 27540, 29070, 29835, 30780, 31590, 33345, 34884, 35802, 37791, 39780, 40014, 41310, 41990, 43605, 44460, 46170, 50388, 52326, 53703, 58140, 59670, 60021, 62985, 63180, 66690, 71604, 75582, 78489, 80028, 82620, 83980, 87210, 89505, 92340, 100035, 104652, 107406, 113373, 119340, 120042, 125970, 130815, 133380, 151164, 156978, 174420, 179010, 188955, 200070, 214812, 226746, 240084, 251940, 261630, 268515, 300105, 313956, 340119, 358020, 377910, 392445, 400140, 453492, 523260, 537030, 566865, 600210, 680238, 755820, 784890, 1020357, 1074060, 1133730, 1200420, 1360476, 1569780, 1700595, 2040714, 2267460, 3401190, 4081428, 5101785, 6802380, 10203570, 20407140]

約数ペア:

[(1, 20407140), (2, 10203570), (3, 6802380), (4, 5101785), (5, 4081428), (6, 3401190), (9, 2267460), (10, 2040714), (12, 1700595), (13, 1569780), (15, 1360476), (17, 1200420), (18, 1133730), (19, 1074060), (20, 1020357), (26, 784890), (27, 755820), (30, 680238), (34, 600210), (36, 566865), (38, 537030), (39, 523260), (45, 453492), (51, 400140), (52, 392445), (54, 377910), (57, 358020), (60, 340119), (65, 313956), (68, 300105), (76, 268515), (78, 261630), (81, 251940), (85, 240084), (90, 226746), (95, 214812), (102, 200070), (108, 188955), (114, 179010), (117, 174420), (130, 156978), (135, 151164), (153, 133380), (156, 130815), (162, 125970), (170, 120042), (171, 119340), (180, 113373), (190, 107406), (195, 104652), (204, 100035), (221, 92340), (228, 89505), (234, 87210), (243, 83980), (247, 82620), (255, 80028), (260, 78489), (270, 75582), (285, 71604), (306, 66690), (323, 63180), (324, 62985), (340, 60021), (342, 59670), (351, 58140), (380, 53703), (390, 52326), (405, 50388), (442, 46170), (459, 44460), (468, 43605), (486, 41990), (494, 41310), (510, 40014), (513, 39780), (540, 37791), (570, 35802), (585, 34884), (612, 33345), (646, 31590), (663, 30780), (684, 29835), (702, 29070), (741, 27540), (765, 26676), (780, 26163), (810, 25194), (855, 23868), (884, 23085), (918, 22230), (969, 21060), (972, 20995), (988, 20655), (1020, 20007), (1026, 19890), (1053, 19380), (1105, 18468), (1140, 17901), (1170, 17442), (1215, 16796), (1235, 16524), (1292, 15795), (1326, 15390), (1377, 14820), (1404, 14535), (1482, 13770), (1530, 13338), (1539, 13260), (1615, 12636), (1620, 12597), (1710, 11934), (1755, 11628), (1836, 11115), (1938, 10530), (1989, 10260), (2052, 9945), (2106, 9690), (2210, 9234), (2223, 9180), (2295, 8892), (2340, 8721), (2430, 8398), (2470, 8262), (2565, 7956), (2652, 7695), (2754, 7410), (2907, 7020), (2964, 6885), (3060, 6669), (3078, 6630), (3159, 6460), (3230, 6318), (3315, 6156), (3420, 5967), (3510, 5814), (3705, 5508), (3876, 5265), (3978, 5130), (4131, 4940), (4199, 4860), (4212, 4845), (4420, 4617), (4446, 4590)]