220980080

素因数分解:

$2^4\times 5^1\times {\mathrm{2762251}}^1$

素因数の和:2762264

約数の個数: 20

約数和(自身を含む): 513778872

約数和(自身を除く): 292798792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2762251, 5524502, 11049004, 13811255, 22098008, 27622510, 44196016, 55245020, 110490040, 220980080]

約数ペア:

[(1, 220980080), (2, 110490040), (4, 55245020), (5, 44196016), (8, 27622510), (10, 22098008), (16, 13811255), (20, 11049004), (40, 5524502), (80, 2762251)]