63981640

素因数分解:

$2^3\times 5^1\times {\mathrm{757}}^1\times {\mathrm{2113}}^1$

素因数の和:2881

約数の個数: 32

約数和(自身を含む): 144217080

約数和(自身を除く): 80235440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 757, 1514, 2113, 3028, 3785, 4226, 6056, 7570, 8452, 10565, 15140, 16904, 21130, 30280, 42260, 84520, 1599541, 3199082, 6398164, 7997705, 12796328, 15995410, 31990820, 63981640]

約数ペア:

[(1, 63981640), (2, 31990820), (4, 15995410), (5, 12796328), (8, 7997705), (10, 6398164), (20, 3199082), (40, 1599541), (757, 84520), (1514, 42260), (2113, 30280), (3028, 21130), (3785, 16904), (4226, 15140), (6056, 10565), (7570, 8452)]