31911940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{38917}}^1$

素因数の和:38967

約数の個数: 24

約数和(自身を含む): 68651352

約数和(自身を除く): 36739412

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 38917, 77834, 155668, 194585, 389170, 778340, 1595597, 3191194, 6382388, 7977985, 15955970, 31911940]

約数ペア:

[(1, 31911940), (2, 15955970), (4, 7977985), (5, 6382388), (10, 3191194), (20, 1595597), (41, 778340), (82, 389170), (164, 194585), (205, 155668), (410, 77834), (820, 38917)]