99939640

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{7159}}^1$

素因数の和:7519

約数の個数: 32

約数和(自身を含む): 225540000

約数和(自身を除く): 125600360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 7159, 13960, 14318, 28636, 35795, 57272, 71590, 143180, 286360, 2498491, 4996982, 9993964, 12492455, 19987928, 24984910, 49969820, 99939640]

約数ペア:

[(1, 99939640), (2, 49969820), (4, 24984910), (5, 19987928), (8, 12492455), (10, 9993964), (20, 4996982), (40, 2498491), (349, 286360), (698, 143180), (1396, 71590), (1745, 57272), (2792, 35795), (3490, 28636), (6980, 14318), (7159, 13960)]