206157020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3541}}^1$

素因数の和:3662

約数の個数: 48

約数和(自身を含む): 449862336

約数和(自身を除く): 243705316

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 710, 820, 1420, 2911, 3541, 5822, 7082, 11644, 14164, 14555, 17705, 29110, 35410, 58220, 70820, 145181, 251411, 290362, 502822, 580724, 725905, 1005644, 1257055, 1451810, 2514110, 2903620, 5028220, 10307851, 20615702, 41231404, 51539255, 103078510, 206157020]

約数ペア:

[(1, 206157020), (2, 103078510), (4, 51539255), (5, 41231404), (10, 20615702), (20, 10307851), (41, 5028220), (71, 2903620), (82, 2514110), (142, 1451810), (164, 1257055), (205, 1005644), (284, 725905), (355, 580724), (410, 502822), (710, 290362), (820, 251411), (1420, 145181), (2911, 70820), (3541, 58220), (5822, 35410), (7082, 29110), (11644, 17705), (14164, 14555)]