28918900

素因数分解:

$2^2\times 5^2\times {\mathrm{289189}}^1$

素因数の和:289203

約数の個数: 18

約数和(自身を含む): 62754230

約数和(自身を除く): 33835330

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 289189, 578378, 1156756, 1445945, 2891890, 5783780, 7229725, 14459450, 28918900]

約数ペア:

[(1, 28918900), (2, 14459450), (4, 7229725), (5, 5783780), (10, 2891890), (20, 1445945), (25, 1156756), (50, 578378), (100, 289189)]