20103100

素因数分解:

$2^2\times 5^2\times {\mathrm{201031}}^1$

素因数の和:201045

約数の個数: 18

約数和(自身を含む): 43623944

約数和(自身を除く): 23520844

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201031, 402062, 804124, 1005155, 2010310, 4020620, 5025775, 10051550, 20103100]

約数ペア:

[(1, 20103100), (2, 10051550), (4, 5025775), (5, 4020620), (10, 2010310), (20, 1005155), (25, 804124), (50, 402062), (100, 201031)]