813062020

素因数分解:

$2^2\times 5^1\times {\mathrm{40653101}}^1$

素因数の和:40653110

約数の個数: 12

約数和(自身を含む): 1707430284

約数和(自身を除く): 894368264

約数列:

[1, 2, 4, 5, 10, 20, 40653101, 81306202, 162612404, 203265505, 406531010, 813062020]

約数ペア:

[(1, 813062020), (2, 406531010), (4, 203265505), (5, 162612404), (10, 81306202), (20, 40653101)]