391125025

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{811}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 492968448

約数和(自身を除く): 101843423

約数列:

[1, 5, 25, 101, 191, 505, 811, 955, 2525, 4055, 4775, 19291, 20275, 81911, 96455, 154901, 409555, 482275, 774505, 2047775, 3872525, 15645001, 78225005, 391125025]

約数ペア:

[(1, 391125025), (5, 78225005), (25, 15645001), (101, 3872525), (191, 2047775), (505, 774505), (811, 482275), (955, 409555), (2525, 154901), (4055, 96455), (4775, 81911), (19291, 20275)]