13041640

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^2$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 29395170

約数和(自身を除く): 16353530

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 4568, 5710, 11420, 22840, 326041, 652082, 1304164, 1630205, 2608328, 3260410, 6520820, 13041640]

約数ペア:

[(1, 13041640), (2, 6520820), (4, 3260410), (5, 2608328), (8, 1630205), (10, 1304164), (20, 652082), (40, 326041), (571, 22840), (1142, 11420), (2284, 5710), (2855, 4568)]