68537080

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2087}}^1$

素因数の和:2919

約数の個数: 32

約数和(自身を含む): 154470240

約数和(自身を除く): 85933160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2087, 3284, 4105, 4174, 6568, 8210, 8348, 10435, 16420, 16696, 20870, 32840, 41740, 83480, 1713427, 3426854, 6853708, 8567135, 13707416, 17134270, 34268540, 68537080]

約数ペア:

[(1, 68537080), (2, 34268540), (4, 17134270), (5, 13707416), (8, 8567135), (10, 6853708), (20, 3426854), (40, 1713427), (821, 83480), (1642, 41740), (2087, 32840), (3284, 20870), (4105, 16696), (4174, 16420), (6568, 10435), (8210, 8348)]