128897655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{505481}}^1$

素因数の和:505506

約数の個数: 16

約数和(自身を含む): 218368224

約数和(自身を除く): 89470569

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 505481, 1516443, 2527405, 7582215, 8593177, 25779531, 42965885, 128897655]

約数ペア:

[(1, 128897655), (3, 42965885), (5, 25779531), (15, 8593177), (17, 7582215), (51, 2527405), (85, 1516443), (255, 505481)]