28901900

素因数分解:

$2^2\times 5^2\times {\mathrm{289019}}^1$

素因数の和:289033

約数の個数: 18

約数和(自身を含む): 62717340

約数和(自身を除く): 33815440

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 289019, 578038, 1156076, 1445095, 2890190, 5780380, 7225475, 14450950, 28901900]

約数ペア:

[(1, 28901900), (2, 14450950), (4, 7225475), (5, 5780380), (10, 2890190), (20, 1445095), (25, 1156076), (50, 578038), (100, 289019)]