28728100

素因数分解:

$2^2\times 5^2\times {\mathrm{287281}}^1$

素因数の和:287295

約数の個数: 18

約数和(自身を含む): 62340194

約数和(自身を除く): 33612094

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 287281, 574562, 1149124, 1436405, 2872810, 5745620, 7182025, 14364050, 28728100]

約数ペア:

[(1, 28728100), (2, 14364050), (4, 7182025), (5, 5745620), (10, 2872810), (20, 1436405), (25, 1149124), (50, 574562), (100, 287281)]