1286875

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 20

約数和(自身を含む): 1686960

約数和(自身を除く): 400085

約数列:

[1, 5, 25, 29, 71, 125, 145, 355, 625, 725, 1775, 2059, 3625, 8875, 10295, 18125, 44375, 51475, 257375, 1286875]

約数ペア:

[(1, 1286875), (5, 257375), (25, 51475), (29, 44375), (71, 18125), (125, 10295), (145, 8875), (355, 3625), (625, 2059), (725, 1775)]