28705900

素因数分解:

$2^2\times 5^2\times {\mathrm{287059}}^1$

素因数の和:287073

約数の個数: 18

約数和(自身を含む): 62292020

約数和(自身を除く): 33586120

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 287059, 574118, 1148236, 1435295, 2870590, 5741180, 7176475, 14352950, 28705900]

約数ペア:

[(1, 28705900), (2, 14352950), (4, 7176475), (5, 5741180), (10, 2870590), (20, 1435295), (25, 1148236), (50, 574118), (100, 287059)]