13281740

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3371}}^1$

素因数の和:3577

約数の個数: 24

約数和(自身を含む): 28041552

約数和(自身を除く): 14759812

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3371, 3940, 6742, 13484, 16855, 33710, 67420, 664087, 1328174, 2656348, 3320435, 6640870, 13281740]

約数ペア:

[(1, 13281740), (2, 6640870), (4, 3320435), (5, 2656348), (10, 1328174), (20, 664087), (197, 67420), (394, 33710), (788, 16855), (985, 13484), (1970, 6742), (3371, 3940)]