40259960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 98431200

約数和(自身を除く): 58171240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 557, 695, 1112, 1114, 1390, 1807, 2228, 2780, 2785, 3614, 4456, 5560, 5570, 7228, 7241, 9035, 11140, 14456, 14482, 18070, 22280, 28964, 36140, 36205, 57928, 72280, 72410, 77423, 144820, 154846, 289640, 309692, 387115, 619384, 774230, 1006499, 1548460, 2012998, 3096920, 4025996, 5032495, 8051992, 10064990, 20129980, 40259960]

約数ペア:

[(1, 40259960), (2, 20129980), (4, 10064990), (5, 8051992), (8, 5032495), (10, 4025996), (13, 3096920), (20, 2012998), (26, 1548460), (40, 1006499), (52, 774230), (65, 619384), (104, 387115), (130, 309692), (139, 289640), (260, 154846), (278, 144820), (520, 77423), (556, 72410), (557, 72280), (695, 57928), (1112, 36205), (1114, 36140), (1390, 28964), (1807, 22280), (2228, 18070), (2780, 14482), (2785, 14456), (3614, 11140), (4456, 9035), (5560, 7241), (5570, 7228)]