642265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:300

約数の個数: 16

約数和(自身を含む): 853776

約数和(自身を除く): 211511

約数列:

[1, 5, 13, 41, 65, 205, 241, 533, 1205, 2665, 3133, 9881, 15665, 49405, 128453, 642265]

約数ペア:

[(1, 642265), (5, 128453), (13, 49405), (41, 15665), (65, 9881), (205, 3133), (241, 2665), (533, 1205)]