20148905

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15559}}^1$

素因数の和:15608

約数の個数: 16

約数和(自身を含む): 28381440

約数和(自身を除く): 8232535

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 15559, 77795, 108913, 544565, 575683, 2878415, 4029781, 20148905]

約数ペア:

[(1, 20148905), (5, 4029781), (7, 2878415), (35, 575683), (37, 544565), (185, 108913), (259, 77795), (1295, 15559)]