28231645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 11775875

約数列:

[1, 5, 13, 17, 29, 65, 85, 145, 221, 377, 493, 881, 1105, 1885, 2465, 4405, 6409, 11453, 14977, 25549, 32045, 57265, 74885, 127745, 194701, 332137, 434333, 973505, 1660685, 2171665, 5646329, 28231645]

約数ペア:

[(1, 28231645), (5, 5646329), (13, 2171665), (17, 1660685), (29, 973505), (65, 434333), (85, 332137), (145, 194701), (221, 127745), (377, 74885), (493, 57265), (881, 32045), (1105, 25549), (1885, 14977), (2465, 11453), (4405, 6409)]