68871725

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{16301}}^1$

素因数の和:16337

約数の個数: 18

約数和(自身を含む): 92481246

約数和(自身を除く): 23609521

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 16301, 81505, 211913, 407525, 1059565, 2754869, 5297825, 13774345, 68871725]

約数ペア:

[(1, 68871725), (5, 13774345), (13, 5297825), (25, 2754869), (65, 1059565), (169, 407525), (325, 211913), (845, 81505), (4225, 16301)]