1580080

素因数分解:

$2^4\times 5^1\times {\mathrm{19751}}^1$

素因数の和:19764

約数の個数: 20

約数和(自身を含む): 3673872

約数和(自身を除く): 2093792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19751, 39502, 79004, 98755, 158008, 197510, 316016, 395020, 790040, 1580080]

約数ペア:

[(1, 1580080), (2, 790040), (4, 395020), (5, 316016), (8, 197510), (10, 158008), (16, 98755), (20, 79004), (40, 39502), (80, 19751)]