980080

素因数分解:

$2^4\times 5^1\times {\mathrm{12251}}^1$

素因数の和:12264

約数の個数: 20

約数和(自身を含む): 2278872

約数和(自身を除く): 1298792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12251, 24502, 49004, 61255, 98008, 122510, 196016, 245020, 490040, 980080]

約数ペア:

[(1, 980080), (2, 490040), (4, 245020), (5, 196016), (8, 122510), (10, 98008), (16, 61255), (20, 49004), (40, 24502), (80, 12251)]