64384240

素因数分解:

$2^4\times 5^1\times {\mathrm{804803}}^1$

素因数の和:804816

約数の個数: 20

約数和(自身を含む): 149693544

約数和(自身を除く): 85309304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 804803, 1609606, 3219212, 4024015, 6438424, 8048030, 12876848, 16096060, 32192120, 64384240]

約数ペア:

[(1, 64384240), (2, 32192120), (4, 16096060), (5, 12876848), (8, 8048030), (10, 6438424), (16, 4024015), (20, 3219212), (40, 1609606), (80, 804803)]