3970220

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1109}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 8391600

約数和(自身を除く): 4421380

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1109, 1790, 2218, 3580, 4436, 5545, 11090, 22180, 198511, 397022, 794044, 992555, 1985110, 3970220]

約数ペア:

[(1, 3970220), (2, 1985110), (4, 992555), (5, 794044), (10, 397022), (20, 198511), (179, 22180), (358, 11090), (716, 5545), (895, 4436), (1109, 3580), (1790, 2218)]