20208550

素因数分解:

$2^1\times 5^2\times {\mathrm{389}}^1\times {\mathrm{1039}}^1$

素因数の和:1440

約数の個数: 24

約数和(自身を含む): 37720800

約数和(自身を除く): 17512250

約数列:

[1, 2, 5, 10, 25, 50, 389, 778, 1039, 1945, 2078, 3890, 5195, 9725, 10390, 19450, 25975, 51950, 404171, 808342, 2020855, 4041710, 10104275, 20208550]

約数ペア:

[(1, 20208550), (2, 10104275), (5, 4041710), (10, 2020855), (25, 808342), (50, 404171), (389, 51950), (778, 25975), (1039, 19450), (1945, 10390), (2078, 9725), (3890, 5195)]