31864240

素因数分解:

$2^4\times 5^1\times {\mathrm{398303}}^1$

素因数の和:398316

約数の個数: 20

約数和(自身を含む): 74084544

約数和(自身を除く): 42220304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398303, 796606, 1593212, 1991515, 3186424, 3983030, 6372848, 7966060, 15932120, 31864240]

約数ペア:

[(1, 31864240), (2, 15932120), (4, 7966060), (5, 6372848), (8, 3983030), (10, 3186424), (16, 1991515), (20, 1593212), (40, 796606), (80, 398303)]