28805620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10513}}^1$

素因数の和:10659

約数の個数: 24

約数和(自身を含む): 60939144

約数和(自身を除く): 32133524

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 10513, 21026, 42052, 52565, 105130, 210260, 1440281, 2880562, 5761124, 7201405, 14402810, 28805620]

約数ペア:

[(1, 28805620), (2, 14402810), (4, 7201405), (5, 5761124), (10, 2880562), (20, 1440281), (137, 210260), (274, 105130), (548, 52565), (685, 42052), (1370, 21026), (2740, 10513)]