20273760

素因数分解:

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

素因数の和:75

約数の個数: 288

約数和(自身を含む): 80650080

約数和(自身を除く): 60376320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 24, 26, 27, 30, 32, 36, 38, 39, 40, 45, 48, 52, 54, 57, 60, 65, 72, 76, 78, 80, 90, 95, 96, 104, 108, 114, 117, 120, 130, 135, 144, 152, 156, 160, 171, 180, 190, 195, 208, 216, 228, 234, 240, 247, 260, 270, 285, 288, 304, 312, 342, 351, 360, 361, 380, 390, 416, 432, 456, 468, 480, 494, 513, 520, 540, 570, 585, 608, 624, 684, 702, 720, 722, 741, 760, 780, 855, 864, 912, 936, 988, 1026, 1040, 1080, 1083, 1140, 1170, 1235, 1248, 1368, 1404, 1440, 1444, 1482, 1520, 1560, 1710, 1755, 1805, 1824, 1872, 1976, 2052, 2080, 2160, 2166, 2223, 2280, 2340, 2470, 2565, 2736, 2808, 2888, 2964, 3040, 3120, 3249, 3420, 3510, 3610, 3705, 3744, 3952, 4104, 4320, 4332, 4446, 4560, 4680, 4693, 4940, 5130, 5415, 5472, 5616, 5776, 5928, 6240, 6498, 6669, 6840, 7020, 7220, 7410, 7904, 8208, 8664, 8892, 9120, 9360, 9386, 9747, 9880, 10260, 10830, 11115, 11232, 11552, 11856, 12996, 13338, 13680, 14040, 14079, 14440, 14820, 16245, 16416, 17328, 17784, 18720, 18772, 19494, 19760, 20520, 21660, 22230, 23465, 23712, 25992, 26676, 27360, 28080, 28158, 28880, 29640, 32490, 33345, 34656, 35568, 37544, 38988, 39520, 41040, 42237, 43320, 44460, 46930, 48735, 51984, 53352, 56160, 56316, 57760, 59280, 64980, 66690, 70395, 71136, 75088, 77976, 82080, 84474, 86640, 88920, 93860, 97470, 103968, 106704, 112632, 118560, 126711, 129960, 133380, 140790, 150176, 155952, 168948, 173280, 177840, 187720, 194940, 211185, 213408, 225264, 253422, 259920, 266760, 281580, 311904, 337896, 355680, 375440, 389880, 422370, 450528, 506844, 519840, 533520, 563160, 633555, 675792, 750880, 779760, 844740, 1013688, 1067040, 1126320, 1267110, 1351584, 1559520, 1689480, 2027376, 2252640, 2534220, 3378960, 4054752, 5068440, 6757920, 10136880, 20273760]

約数ペア:

[(1, 20273760), (2, 10136880), (3, 6757920), (4, 5068440), (5, 4054752), (6, 3378960), (8, 2534220), (9, 2252640), (10, 2027376), (12, 1689480), (13, 1559520), (15, 1351584), (16, 1267110), (18, 1126320), (19, 1067040), (20, 1013688), (24, 844740), (26, 779760), (27, 750880), (30, 675792), (32, 633555), (36, 563160), (38, 533520), (39, 519840), (40, 506844), (45, 450528), (48, 422370), (52, 389880), (54, 375440), (57, 355680), (60, 337896), (65, 311904), (72, 281580), (76, 266760), (78, 259920), (80, 253422), (90, 225264), (95, 213408), (96, 211185), (104, 194940), (108, 187720), (114, 177840), (117, 173280), (120, 168948), (130, 155952), (135, 150176), (144, 140790), (152, 133380), (156, 129960), (160, 126711), (171, 118560), (180, 112632), (190, 106704), (195, 103968), (208, 97470), (216, 93860), (228, 88920), (234, 86640), (240, 84474), (247, 82080), (260, 77976), (270, 75088), (285, 71136), (288, 70395), (304, 66690), (312, 64980), (342, 59280), (351, 57760), (360, 56316), (361, 56160), (380, 53352), (390, 51984), (416, 48735), (432, 46930), (456, 44460), (468, 43320), (480, 42237), (494, 41040), (513, 39520), (520, 38988), (540, 37544), (570, 35568), (585, 34656), (608, 33345), (624, 32490), (684, 29640), (702, 28880), (720, 28158), (722, 28080), (741, 27360), (760, 26676), (780, 25992), (855, 23712), (864, 23465), (912, 22230), (936, 21660), (988, 20520), (1026, 19760), (1040, 19494), (1080, 18772), (1083, 18720), (1140, 17784), (1170, 17328), (1235, 16416), (1248, 16245), (1368, 14820), (1404, 14440), (1440, 14079), (1444, 14040), (1482, 13680), (1520, 13338), (1560, 12996), (1710, 11856), (1755, 11552), (1805, 11232), (1824, 11115), (1872, 10830), (1976, 10260), (2052, 9880), (2080, 9747), (2160, 9386), (2166, 9360), (2223, 9120), (2280, 8892), (2340, 8664), (2470, 8208), (2565, 7904), (2736, 7410), (2808, 7220), (2888, 7020), (2964, 6840), (3040, 6669), (3120, 6498), (3249, 6240), (3420, 5928), (3510, 5776), (3610, 5616), (3705, 5472), (3744, 5415), (3952, 5130), (4104, 4940), (4320, 4693), (4332, 4680), (4446, 4560)]