28506485

素因数分解:

$5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 40027680

約数和(自身を除く): 11521195

約数列:

[1, 5, 7, 35, 49, 245, 307, 379, 1535, 1895, 2149, 2653, 10745, 13265, 15043, 18571, 75215, 92855, 116353, 581765, 814471, 4072355, 5701297, 28506485]

約数ペア:

[(1, 28506485), (5, 5701297), (7, 4072355), (35, 814471), (49, 581765), (245, 116353), (307, 92855), (379, 75215), (1535, 18571), (1895, 15043), (2149, 13265), (2653, 10745)]