28351280

素因数分解:

$2^4\times 5^1\times {\mathrm{354391}}^1$

素因数の和:354404

約数の個数: 20

約数和(自身を含む): 65916912

約数和(自身を除く): 37565632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354391, 708782, 1417564, 1771955, 2835128, 3543910, 5670256, 7087820, 14175640, 28351280]

約数ペア:

[(1, 28351280), (2, 14175640), (4, 7087820), (5, 5670256), (8, 3543910), (10, 2835128), (16, 1771955), (20, 1417564), (40, 708782), (80, 354391)]