202181020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{142381}}^1$

素因数の和:142461

約数の個数: 24

約数和(自身を含む): 430563168

約数和(自身を除く): 228382148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 142381, 284762, 569524, 711905, 1423810, 2847620, 10109051, 20218102, 40436204, 50545255, 101090510, 202181020]

約数ペア:

[(1, 202181020), (2, 101090510), (4, 50545255), (5, 40436204), (10, 20218102), (20, 10109051), (71, 2847620), (142, 1423810), (284, 711905), (355, 569524), (710, 284762), (1420, 142381)]