28201870

素因数分解:

$2^1\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{2543}}^1$

素因数の和:3659

約数の個数: 16

約数和(自身を含む): 50829120

約数和(自身を除く): 22627250

約数列:

[1, 2, 5, 10, 1109, 2218, 2543, 5086, 5545, 11090, 12715, 25430, 2820187, 5640374, 14100935, 28201870]

約数ペア:

[(1, 28201870), (2, 14100935), (5, 5640374), (10, 2820187), (1109, 25430), (2218, 12715), (2543, 11090), (5086, 5545)]