211065980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{340429}}^1$

素因数の和:340469

約数の個数: 24

約数和(自身を含む): 457537920

約数和(自身を除く): 246471940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 340429, 680858, 1361716, 1702145, 3404290, 6808580, 10553299, 21106598, 42213196, 52766495, 105532990, 211065980]

約数ペア:

[(1, 211065980), (2, 105532990), (4, 52766495), (5, 42213196), (10, 21106598), (20, 10553299), (31, 6808580), (62, 3404290), (124, 1702145), (155, 1361716), (310, 680858), (620, 340429)]