17960140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81637}}^1$

素因数の和:81657

約数の個数: 24

約数和(自身を含む): 41145552

約数和(自身を除く): 23185412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81637, 163274, 326548, 408185, 816370, 898007, 1632740, 1796014, 3592028, 4490035, 8980070, 17960140]

約数ペア:

[(1, 17960140), (2, 8980070), (4, 4490035), (5, 3592028), (10, 1796014), (11, 1632740), (20, 898007), (22, 816370), (44, 408185), (55, 326548), (110, 163274), (220, 81637)]