19698160

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2179}}^1$

素因数の和:2305

約数の個数: 40

約数和(自身を含む): 46224720

約数和(自身を除く): 26526560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2179, 2260, 4358, 4520, 8716, 9040, 10895, 17432, 21790, 34864, 43580, 87160, 174320, 246227, 492454, 984908, 1231135, 1969816, 2462270, 3939632, 4924540, 9849080, 19698160]

約数ペア:

[(1, 19698160), (2, 9849080), (4, 4924540), (5, 3939632), (8, 2462270), (10, 1969816), (16, 1231135), (20, 984908), (40, 492454), (80, 246227), (113, 174320), (226, 87160), (452, 43580), (565, 34864), (904, 21790), (1130, 17432), (1808, 10895), (2179, 9040), (2260, 8716), (4358, 4520)]