2111875

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:160

約数の個数: 20

約数和(自身を含む): 2749120

約数和(自身を除く): 637245

約数列:

[1, 5, 25, 31, 109, 125, 155, 545, 625, 775, 2725, 3379, 3875, 13625, 16895, 19375, 68125, 84475, 422375, 2111875]

約数ペア:

[(1, 2111875), (5, 422375), (25, 84475), (31, 68125), (109, 19375), (125, 16895), (155, 13625), (545, 3875), (625, 3379), (775, 2725)]