1223125

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:142

約数の個数: 20

約数和(自身を含む): 1624480

約数和(自身を除く): 401355

約数列:

[1, 5, 19, 25, 95, 103, 125, 475, 515, 625, 1957, 2375, 2575, 9785, 11875, 12875, 48925, 64375, 244625, 1223125]

約数ペア:

[(1, 1223125), (5, 244625), (19, 64375), (25, 48925), (95, 12875), (103, 11875), (125, 9785), (475, 2575), (515, 2375), (625, 1957)]