31144240

素因数分解:

$2^4\times 5^1\times {\mathrm{389303}}^1$

素因数の和:389316

約数の個数: 20

約数和(自身を含む): 72410544

約数和(自身を除く): 41266304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389303, 778606, 1557212, 1946515, 3114424, 3893030, 6228848, 7786060, 15572120, 31144240]

約数ペア:

[(1, 31144240), (2, 15572120), (4, 7786060), (5, 6228848), (8, 3893030), (10, 3114424), (16, 1946515), (20, 1557212), (40, 778606), (80, 389303)]