66420025

素因数分解:

$5^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{773}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 94440384

約数和(自身を除く): 28020359

約数列:

[1, 5, 7, 25, 35, 175, 491, 773, 2455, 3437, 3865, 5411, 12275, 17185, 19325, 27055, 85925, 135275, 379543, 1897715, 2656801, 9488575, 13284005, 66420025]

約数ペア:

[(1, 66420025), (5, 13284005), (7, 9488575), (25, 2656801), (35, 1897715), (175, 379543), (491, 135275), (773, 85925), (2455, 27055), (3437, 19325), (3865, 17185), (5411, 12275)]