82478456560

素因数分解:

$2^4\times 5^1\times {\mathrm{1030980707}}^1$

素因数の和:1030980720

約数の個数: 20

約数和(自身を含む): 191762411688

約数和(自身を除く): 109283955128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1030980707, 2061961414, 4123922828, 5154903535, 8247845656, 10309807070, 16495691312, 20619614140, 41239228280, 82478456560]

約数ペア:

[(1, 82478456560), (2, 41239228280), (4, 20619614140), (5, 16495691312), (8, 10309807070), (10, 8247845656), (16, 5154903535), (20, 4123922828), (40, 2061961414), (80, 1030980707)]