40506640

素因数分解:

$2^4\times 5^1\times {\mathrm{506333}}^1$

素因数の和:506346

約数の個数: 20

約数和(自身を含む): 94178124

約数和(自身を除く): 53671484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 506333, 1012666, 2025332, 2531665, 4050664, 5063330, 8101328, 10126660, 20253320, 40506640]

約数ペア:

[(1, 40506640), (2, 20253320), (4, 10126660), (5, 8101328), (8, 5063330), (10, 4050664), (16, 2531665), (20, 2025332), (40, 1012666), (80, 506333)]