28327740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67447}}^1$

素因数の和:67466

約数の個数: 48

約数和(自身を含む): 90650112

約数和(自身を除く): 62322372

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, 67447, 134894, 202341, 269788, 337235, 404682, 472129, 674470, 809364, 944258, 1011705, 1348940, 1416387, 1888516, 2023410, 2360645, 2832774, 4046820, 4721290, 5665548, 7081935, 9442580, 14163870, 28327740]

約数ペア:

[(1, 28327740), (2, 14163870), (3, 9442580), (4, 7081935), (5, 5665548), (6, 4721290), (7, 4046820), (10, 2832774), (12, 2360645), (14, 2023410), (15, 1888516), (20, 1416387), (21, 1348940), (28, 1011705), (30, 944258), (35, 809364), (42, 674470), (60, 472129), (70, 404682), (84, 337235), (105, 269788), (140, 202341), (210, 134894), (420, 67447)]