20840740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22171}}^1$

素因数の和:22227

約数の個数: 24

約数和(自身を含む): 44698752

約数和(自身を除く): 23858012

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22171, 44342, 88684, 110855, 221710, 443420, 1042037, 2084074, 4168148, 5210185, 10420370, 20840740]

約数ペア:

[(1, 20840740), (2, 10420370), (4, 5210185), (5, 4168148), (10, 2084074), (20, 1042037), (47, 443420), (94, 221710), (188, 110855), (235, 88684), (470, 44342), (940, 22171)]