28239100

素因数分解:

$2^2\times 5^2\times {\mathrm{282391}}^1$

素因数の和:282405

約数の個数: 18

約数和(自身を含む): 61279064

約数和(自身を除く): 33039964

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 282391, 564782, 1129564, 1411955, 2823910, 5647820, 7059775, 14119550, 28239100]

約数ペア:

[(1, 28239100), (2, 14119550), (4, 7059775), (5, 5647820), (10, 2823910), (20, 1411955), (25, 1129564), (50, 564782), (100, 282391)]