31095980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19681}}^1$

素因数の和:19769

約数の個数: 24

約数和(自身を含む): 66131520

約数和(自身を除く): 35035540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19681, 39362, 78724, 98405, 196810, 393620, 1554799, 3109598, 6219196, 7773995, 15547990, 31095980]

約数ペア:

[(1, 31095980), (2, 15547990), (4, 7773995), (5, 6219196), (10, 3109598), (20, 1554799), (79, 393620), (158, 196810), (316, 98405), (395, 78724), (790, 39362), (1580, 19681)]