42220040

素因数分解:

$2^3\times 5^1\times {\mathrm{1055501}}^1$

素因数の和:1055512

約数の個数: 16

約数和(自身を含む): 94995180

約数和(自身を除く): 52775140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1055501, 2111002, 4222004, 5277505, 8444008, 10555010, 21110020, 42220040]

約数ペア:

[(1, 42220040), (2, 21110020), (4, 10555010), (5, 8444008), (8, 5277505), (10, 4222004), (20, 2111002), (40, 1055501)]