85468720

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2141}}^1$

素因数の和:2653

約数の個数: 40

約数和(自身を含む): 199206000

約数和(自身を除く): 113737280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1996, 2141, 2495, 3992, 4282, 4990, 7984, 8564, 9980, 10705, 17128, 19960, 21410, 34256, 39920, 42820, 85640, 171280, 1068359, 2136718, 4273436, 5341795, 8546872, 10683590, 17093744, 21367180, 42734360, 85468720]

約数ペア:

[(1, 85468720), (2, 42734360), (4, 21367180), (5, 17093744), (8, 10683590), (10, 8546872), (16, 5341795), (20, 4273436), (40, 2136718), (80, 1068359), (499, 171280), (998, 85640), (1996, 42820), (2141, 39920), (2495, 34256), (3992, 21410), (4282, 19960), (4990, 17128), (7984, 10705), (8564, 9980)]