156957970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{2459}}^1$

素因数の和:2970

約数の個数: 32

約数和(自身を含む): 305000640

約数和(自身を除く): 148042670

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 491, 982, 2455, 2459, 4910, 4918, 6383, 12295, 12766, 24590, 31915, 31967, 63830, 63934, 159835, 319670, 1207369, 2414738, 6036845, 12073690, 15695797, 31391594, 78478985, 156957970]

約数ペア:

[(1, 156957970), (2, 78478985), (5, 31391594), (10, 15695797), (13, 12073690), (26, 6036845), (65, 2414738), (130, 1207369), (491, 319670), (982, 159835), (2455, 63934), (2459, 63830), (4910, 31967), (4918, 31915), (6383, 24590), (12295, 12766)]