286640

素因数分解:

$2^4\times 5^1\times {\mathrm{3583}}^1$

素因数の和:3596

約数の個数: 20

約数和(自身を含む): 666624

約数和(自身を除く): 379984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3583, 7166, 14332, 17915, 28664, 35830, 57328, 71660, 143320, 286640]

約数ペア:

[(1, 286640), (2, 143320), (4, 71660), (5, 57328), (8, 35830), (10, 28664), (16, 17915), (20, 14332), (40, 7166), (80, 3583)]