20215516180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14236279}}^1$

素因数の和:14236359

約数の個数: 24

約数和(自身を含む): 43050510720

約数和(自身を除く): 22834994540

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14236279, 28472558, 56945116, 71181395, 142362790, 284725580, 1010775809, 2021551618, 4043103236, 5053879045, 10107758090, 20215516180]

約数ペア:

[(1, 20215516180), (2, 10107758090), (4, 5053879045), (5, 4043103236), (10, 2021551618), (20, 1010775809), (71, 284725580), (142, 142362790), (284, 71181395), (355, 56945116), (710, 28472558), (1420, 14236279)]