20401675

素因数分解:

$5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1597}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 29326496

約数和(自身を除く): 8924821

約数列:

[1, 5, 7, 25, 35, 73, 175, 365, 511, 1597, 1825, 2555, 7985, 11179, 12775, 39925, 55895, 116581, 279475, 582905, 816067, 2914525, 4080335, 20401675]

約数ペア:

[(1, 20401675), (5, 4080335), (7, 2914525), (25, 816067), (35, 582905), (73, 279475), (175, 116581), (365, 55895), (511, 39925), (1597, 12775), (1825, 11179), (2555, 7985)]