31321315

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{509}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 38972160

約数和(自身を除く): 7650845

約数列:

[1, 5, 31, 155, 397, 509, 1985, 2545, 12307, 15779, 61535, 78895, 202073, 1010365, 6264263, 31321315]

約数ペア:

[(1, 31321315), (5, 6264263), (31, 1010365), (155, 202073), (397, 78895), (509, 61535), (1985, 15779), (2545, 12307)]