20244500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2169

約数の個数: 48

約数和(自身を含む): 46562880

約数和(自身を除く): 26318380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2131, 2375, 4262, 4750, 8524, 9500, 10655, 21310, 40489, 42620, 53275, 80978, 106550, 161956, 202445, 213100, 266375, 404890, 532750, 809780, 1012225, 1065500, 2024450, 4048900, 5061125, 10122250, 20244500]

約数ペア:

[(1, 20244500), (2, 10122250), (4, 5061125), (5, 4048900), (10, 2024450), (19, 1065500), (20, 1012225), (25, 809780), (38, 532750), (50, 404890), (76, 266375), (95, 213100), (100, 202445), (125, 161956), (190, 106550), (250, 80978), (380, 53275), (475, 42620), (500, 40489), (950, 21310), (1900, 10655), (2131, 9500), (2375, 8524), (4262, 4750)]