389968180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2785487}}^1$

素因数の和:2785503

約数の個数: 24

約数和(自身を含む): 935923968

約数和(自身を除く): 545955788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2785487, 5570974, 11141948, 13927435, 19498409, 27854870, 38996818, 55709740, 77993636, 97492045, 194984090, 389968180]

約数ペア:

[(1, 389968180), (2, 194984090), (4, 97492045), (5, 77993636), (7, 55709740), (10, 38996818), (14, 27854870), (20, 19498409), (28, 13927435), (35, 11141948), (70, 5570974), (140, 2785487)]