158721875

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{3907}}^1$

素因数の和:3945

約数の個数: 24

約数和(自身を含む): 213705072

約数和(自身を除く): 54983197

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 3125, 3907, 8125, 19535, 40625, 50791, 97675, 253955, 488375, 1269775, 2441875, 6348875, 12209375, 31744375, 158721875]

約数ペア:

[(1, 158721875), (5, 31744375), (13, 12209375), (25, 6348875), (65, 2441875), (125, 1269775), (325, 488375), (625, 253955), (1625, 97675), (3125, 50791), (3907, 40625), (8125, 19535)]