20294305

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{421}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 25279488

約数和(自身を除く): 4985183

約数列:

[1, 5, 31, 155, 311, 421, 1555, 2105, 9641, 13051, 48205, 65255, 130931, 654655, 4058861, 20294305]

約数ペア:

[(1, 20294305), (5, 4058861), (31, 654655), (155, 130931), (311, 65255), (421, 48205), (1555, 13051), (2105, 9641)]