2708225

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 18

約数和(自身を含む): 3642066

約数和(自身を除く): 933841

約数列:

[1, 5, 13, 25, 65, 169, 325, 641, 845, 3205, 4225, 8333, 16025, 41665, 108329, 208325, 541645, 2708225]

約数ペア:

[(1, 2708225), (5, 541645), (13, 208325), (25, 108329), (65, 41665), (169, 16025), (325, 8333), (641, 4225), (845, 3205)]