2648125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:262

約数の個数: 20

約数和(自身を含む): 3498880

約数和(自身を除く): 850755

約数列:

[1, 5, 19, 25, 95, 125, 223, 475, 625, 1115, 2375, 4237, 5575, 11875, 21185, 27875, 105925, 139375, 529625, 2648125]

約数ペア:

[(1, 2648125), (5, 529625), (19, 139375), (25, 105925), (95, 27875), (125, 21185), (223, 11875), (475, 5575), (625, 4237), (1115, 2375)]