31519420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19949}}^1$

素因数の和:20037

約数の個数: 24

約数和(自身を含む): 67032000

約数和(自身を除く): 35512580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19949, 39898, 79796, 99745, 199490, 398980, 1575971, 3151942, 6303884, 7879855, 15759710, 31519420]

約数ペア:

[(1, 31519420), (2, 15759710), (4, 7879855), (5, 6303884), (10, 3151942), (20, 1575971), (79, 398980), (158, 199490), (316, 99745), (395, 79796), (790, 39898), (1580, 19949)]