20781088080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2793157}}^1$

素因数の和:2793204

約数の個数: 80

約数和(自身を含む): 66499505664

約数和(自身を除く): 45718417584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 2793157, 5586314, 8379471, 11172628, 13965785, 16758942, 22345256, 27931570, 33517884, 41897355, 44690512, 55863140, 67035768, 83794710, 86587867, 111726280, 134071536, 167589420, 173175734, 223452560, 259763601, 335178840, 346351468, 432939335, 519527202, 670357680, 692702936, 865878670, 1039054404, 1298818005, 1385405872, 1731757340, 2078108808, 2597636010, 3463514680, 4156217616, 5195272020, 6927029360, 10390544040, 20781088080]

約数ペア:

[(1, 20781088080), (2, 10390544040), (3, 6927029360), (4, 5195272020), (5, 4156217616), (6, 3463514680), (8, 2597636010), (10, 2078108808), (12, 1731757340), (15, 1385405872), (16, 1298818005), (20, 1039054404), (24, 865878670), (30, 692702936), (31, 670357680), (40, 519527202), (48, 432939335), (60, 346351468), (62, 335178840), (80, 259763601), (93, 223452560), (120, 173175734), (124, 167589420), (155, 134071536), (186, 111726280), (240, 86587867), (248, 83794710), (310, 67035768), (372, 55863140), (465, 44690512), (496, 41897355), (620, 33517884), (744, 27931570), (930, 22345256), (1240, 16758942), (1488, 13965785), (1860, 11172628), (2480, 8379471), (3720, 5586314), (7440, 2793157)]