13945640

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{787}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 31488480

約数和(自身を除く): 17542840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 787, 886, 1574, 1772, 2215, 3148, 3544, 3935, 4430, 6296, 7870, 8860, 15740, 17720, 31480, 348641, 697282, 1394564, 1743205, 2789128, 3486410, 6972820, 13945640]

約数ペア:

[(1, 13945640), (2, 6972820), (4, 3486410), (5, 2789128), (8, 1743205), (10, 1394564), (20, 697282), (40, 348641), (443, 31480), (787, 17720), (886, 15740), (1574, 8860), (1772, 7870), (2215, 6296), (3148, 4430), (3544, 3935)]