78846860

素因数分解:

$2^2\times 5^1\times {\mathrm{1889}}^1\times {\mathrm{2087}}^1$

素因数の和:3985

約数の個数: 24

約数和(自身を含む): 165745440

約数和(自身を除く): 86898580

約数列:

[1, 2, 4, 5, 10, 20, 1889, 2087, 3778, 4174, 7556, 8348, 9445, 10435, 18890, 20870, 37780, 41740, 3942343, 7884686, 15769372, 19711715, 39423430, 78846860]

約数ペア:

[(1, 78846860), (2, 39423430), (4, 19711715), (5, 15769372), (10, 7884686), (20, 3942343), (1889, 41740), (2087, 37780), (3778, 20870), (4174, 18890), (7556, 10435), (8348, 9445)]