28365540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67537}}^1$

素因数の和:67556

約数の個数: 48

約数和(自身を含む): 90771072

約数和(自身を除く): 62405532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67537, 135074, 202611, 270148, 337685, 405222, 472759, 675370, 810444, 945518, 1013055, 1350740, 1418277, 1891036, 2026110, 2363795, 2836554, 4052220, 4727590, 5673108, 7091385, 9455180, 14182770, 28365540]

約数ペア:

[(1, 28365540), (2, 14182770), (3, 9455180), (4, 7091385), (5, 5673108), (6, 4727590), (7, 4052220), (10, 2836554), (12, 2363795), (14, 2026110), (15, 1891036), (20, 1418277), (21, 1350740), (28, 1013055), (30, 945518), (35, 810444), (42, 675370), (60, 472759), (70, 405222), (84, 337685), (105, 270148), (140, 202611), (210, 135074), (420, 67537)]