72578940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{172807}}^1$

素因数の和:172826

約数の個数: 48

約数和(自身を含む): 232253952

約数和(自身を除く): 159675012

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, 172807, 345614, 518421, 691228, 864035, 1036842, 1209649, 1728070, 2073684, 2419298, 2592105, 3456140, 3628947, 4838596, 5184210, 6048245, 7257894, 10368420, 12096490, 14515788, 18144735, 24192980, 36289470, 72578940]

約数ペア:

[(1, 72578940), (2, 36289470), (3, 24192980), (4, 18144735), (5, 14515788), (6, 12096490), (7, 10368420), (10, 7257894), (12, 6048245), (14, 5184210), (15, 4838596), (20, 3628947), (21, 3456140), (28, 2592105), (30, 2419298), (35, 2073684), (42, 1728070), (60, 1209649), (70, 1036842), (84, 864035), (105, 691228), (140, 518421), (210, 345614), (420, 172807)]