268928940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{640307}}^1$

素因数の和:640326

約数の個数: 48

約数和(自身を含む): 860573952

約数和(自身を除く): 591645012

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, 640307, 1280614, 1920921, 2561228, 3201535, 3841842, 4482149, 6403070, 7683684, 8964298, 9604605, 12806140, 13446447, 17928596, 19209210, 22410745, 26892894, 38418420, 44821490, 53785788, 67232235, 89642980, 134464470, 268928940]

約数ペア:

[(1, 268928940), (2, 134464470), (3, 89642980), (4, 67232235), (5, 53785788), (6, 44821490), (7, 38418420), (10, 26892894), (12, 22410745), (14, 19209210), (15, 17928596), (20, 13446447), (21, 12806140), (28, 9604605), (30, 8964298), (35, 7683684), (42, 6403070), (60, 4482149), (70, 3841842), (84, 3201535), (105, 2561228), (140, 1920921), (210, 1280614), (420, 640307)]