40820240

素因数分解:

$2^4\times 5^1\times {\mathrm{510253}}^1$

素因数の和:510266

約数の個数: 20

約数和(自身を含む): 94907244

約数和(自身を除く): 54087004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 510253, 1020506, 2041012, 2551265, 4082024, 5102530, 8164048, 10205060, 20410120, 40820240]

約数ペア:

[(1, 40820240), (2, 20410120), (4, 10205060), (5, 8164048), (8, 5102530), (10, 4082024), (16, 2551265), (20, 2041012), (40, 1020506), (80, 510253)]