80979800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{36809}}^1$

素因数の和:36836

約数の個数: 48

約数和(自身を含む): 205399800

約数和(自身を除く): 124420000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 36809, 73618, 147236, 184045, 294472, 368090, 404899, 736180, 809798, 920225, 1472360, 1619596, 1840450, 2024495, 3239192, 3680900, 4048990, 7361800, 8097980, 10122475, 16195960, 20244950, 40489900, 80979800]

約数ペア:

[(1, 80979800), (2, 40489900), (4, 20244950), (5, 16195960), (8, 10122475), (10, 8097980), (11, 7361800), (20, 4048990), (22, 3680900), (25, 3239192), (40, 2024495), (44, 1840450), (50, 1619596), (55, 1472360), (88, 920225), (100, 809798), (110, 736180), (200, 404899), (220, 368090), (275, 294472), (440, 184045), (550, 147236), (1100, 73618), (2200, 36809)]