28268940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67307}}^1$

素因数の和:67326

約数の個数: 48

約数和(自身を含む): 90461952

約数和(自身を除く): 62193012

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, 67307, 134614, 201921, 269228, 336535, 403842, 471149, 673070, 807684, 942298, 1009605, 1346140, 1413447, 1884596, 2019210, 2355745, 2826894, 4038420, 4711490, 5653788, 7067235, 9422980, 14134470, 28268940]

約数ペア:

[(1, 28268940), (2, 14134470), (3, 9422980), (4, 7067235), (5, 5653788), (6, 4711490), (7, 4038420), (10, 2826894), (12, 2355745), (14, 2019210), (15, 1884596), (20, 1413447), (21, 1346140), (28, 1009605), (30, 942298), (35, 807684), (42, 673070), (60, 471149), (70, 403842), (84, 336535), (105, 269228), (140, 201921), (210, 134614), (420, 67307)]