6464240

素因数分解:

$2^4\times 5^1\times {\mathrm{80803}}^1$

素因数の和:80816

約数の個数: 20

約数和(自身を含む): 15029544

約数和(自身を除く): 8565304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 80803, 161606, 323212, 404015, 646424, 808030, 1292848, 1616060, 3232120, 6464240]

約数ペア:

[(1, 6464240), (2, 3232120), (4, 1616060), (5, 1292848), (8, 808030), (10, 646424), (16, 404015), (20, 323212), (40, 161606), (80, 80803)]