20009750

素因数分解:

$2^1\times 5^3\times {\mathrm{80039}}^1$

素因数の和:80056

約数の個数: 16

約数和(自身を含む): 37458720

約数和(自身を除く): 17448970

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 80039, 160078, 400195, 800390, 2000975, 4001950, 10004875, 20009750]

約数ペア:

[(1, 20009750), (2, 10004875), (5, 4001950), (10, 2000975), (25, 800390), (50, 400195), (125, 160078), (250, 80039)]