20402375

素因数分解:

$5^3\times 7^2\times {\mathrm{3331}}^1$

素因数の和:3360

約数の個数: 24

約数和(自身を含む): 29628144

約数和(自身を除く): 9225769

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 875, 1225, 3331, 6125, 16655, 23317, 83275, 116585, 163219, 416375, 582925, 816095, 2914625, 4080475, 20402375]

約数ペア:

[(1, 20402375), (5, 4080475), (7, 2914625), (25, 816095), (35, 582925), (49, 416375), (125, 163219), (175, 116585), (245, 83275), (875, 23317), (1225, 16655), (3331, 6125)]