6464720

素因数分解:

$2^4\times 5^1\times {\mathrm{80809}}^1$

素因数の和:80822

約数の個数: 20

約数和(自身を含む): 15030660

約数和(自身を除く): 8565940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 80809, 161618, 323236, 404045, 646472, 808090, 1292944, 1616180, 3232360, 6464720]

約数ペア:

[(1, 6464720), (2, 3232360), (4, 1616180), (5, 1292944), (8, 808090), (10, 646472), (16, 404045), (20, 323236), (40, 161618), (80, 80809)]