55555640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{198413}}^1$

素因数の和:198431

約数の個数: 32

約数和(自身を含む): 142858080

約数和(自身を除く): 87302440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 198413, 396826, 793652, 992065, 1388891, 1587304, 1984130, 2777782, 3968260, 5555564, 6944455, 7936520, 11111128, 13888910, 27777820, 55555640]

約数ペア:

[(1, 55555640), (2, 27777820), (4, 13888910), (5, 11111128), (7, 7936520), (8, 6944455), (10, 5555564), (14, 3968260), (20, 2777782), (28, 1984130), (35, 1587304), (40, 1388891), (56, 992065), (70, 793652), (140, 396826), (280, 198413)]