40980080

素因数分解:

$2^4\times 5^1\times {\mathrm{512251}}^1$

素因数の和:512264

約数の個数: 20

約数和(自身を含む): 95278872

約数和(自身を除く): 54298792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 512251, 1024502, 2049004, 2561255, 4098008, 5122510, 8196016, 10245020, 20490040, 40980080]

約数ペア:

[(1, 40980080), (2, 20490040), (4, 10245020), (5, 8196016), (8, 5122510), (10, 4098008), (16, 2561255), (20, 2049004), (40, 1024502), (80, 512251)]