80320040

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{3529}}^1$

素因数の和:4109

約数の個数: 32

約数和(自身を含む): 181089000

約数和(自身を除く): 100768960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 2276, 2845, 3529, 4552, 5690, 7058, 11380, 14116, 17645, 22760, 28232, 35290, 70580, 141160, 2008001, 4016002, 8032004, 10040005, 16064008, 20080010, 40160020, 80320040]

約数ペア:

[(1, 80320040), (2, 40160020), (4, 20080010), (5, 16064008), (8, 10040005), (10, 8032004), (20, 4016002), (40, 2008001), (569, 141160), (1138, 70580), (2276, 35290), (2845, 28232), (3529, 22760), (4552, 17645), (5690, 14116), (7058, 11380)]