20138338040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{56843}}^1$

素因数の和:57392

約数の個数: 64

約数和(自身を含む): 48069560160

約数和(自身を除く): 27931222120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 521, 680, 1042, 2084, 2605, 4168, 5210, 8857, 10420, 17714, 20840, 35428, 44285, 56843, 70856, 88570, 113686, 177140, 227372, 284215, 354280, 454744, 568430, 966331, 1136860, 1932662, 2273720, 3865324, 4831655, 7730648, 9663310, 19326620, 29615203, 38653240, 59230406, 118460812, 148076015, 236921624, 296152030, 503458451, 592304060, 1006916902, 1184608120, 2013833804, 2517292255, 4027667608, 5034584510, 10069169020, 20138338040]

約数ペア:

[(1, 20138338040), (2, 10069169020), (4, 5034584510), (5, 4027667608), (8, 2517292255), (10, 2013833804), (17, 1184608120), (20, 1006916902), (34, 592304060), (40, 503458451), (68, 296152030), (85, 236921624), (136, 148076015), (170, 118460812), (340, 59230406), (521, 38653240), (680, 29615203), (1042, 19326620), (2084, 9663310), (2605, 7730648), (4168, 4831655), (5210, 3865324), (8857, 2273720), (10420, 1932662), (17714, 1136860), (20840, 966331), (35428, 568430), (44285, 454744), (56843, 354280), (70856, 284215), (88570, 227372), (113686, 177140)]