90720905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{40231}}^1$

素因数の和:40288

約数の個数: 16

約数和(自身を含む): 121661568

約数和(自身を除く): 30940663

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 40231, 201155, 442541, 1649471, 2212705, 8247355, 18144181, 90720905]

約数ペア:

[(1, 90720905), (5, 18144181), (11, 8247355), (41, 2212705), (55, 1649471), (205, 442541), (451, 201155), (2255, 40231)]