80053520

素因数分解:

$2^4\times 5^1\times {\mathrm{1000669}}^1$

素因数の和:1000682

約数の個数: 20

約数和(自身を含む): 186124620

約数和(自身を除く): 106071100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1000669, 2001338, 4002676, 5003345, 8005352, 10006690, 16010704, 20013380, 40026760, 80053520]

約数ペア:

[(1, 80053520), (2, 40026760), (4, 20013380), (5, 16010704), (8, 10006690), (10, 8005352), (16, 5003345), (20, 4002676), (40, 2001338), (80, 1000669)]