1968125

素因数分解:

$5^4\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:134

約数の個数: 20

約数和(自身を含む): 2549184

約数和(自身を除く): 581059

約数列:

[1, 5, 25, 47, 67, 125, 235, 335, 625, 1175, 1675, 3149, 5875, 8375, 15745, 29375, 41875, 78725, 393625, 1968125]

約数ペア:

[(1, 1968125), (5, 393625), (25, 78725), (47, 41875), (67, 29375), (125, 15745), (235, 8375), (335, 5875), (625, 3149), (1175, 1675)]