80125475

素因数分解:

$5^2\times {\mathrm{113}}^2\times {\mathrm{251}}^1$

素因数の和:487

約数の個数: 18

約数和(自身を含む): 100641996

約数和(自身を除く): 20516521

約数列:

[1, 5, 25, 113, 251, 565, 1255, 2825, 6275, 12769, 28363, 63845, 141815, 319225, 709075, 3205019, 16025095, 80125475]

約数ペア:

[(1, 80125475), (5, 16025095), (25, 3205019), (113, 709075), (251, 319225), (565, 141815), (1255, 63845), (2825, 28363), (6275, 12769)]