278069960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{993107}}^1$

素因数の和:993125

約数の個数: 32

約数和(自身を含む): 715037760

約数和(自身を除く): 436967800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 993107, 1986214, 3972428, 4965535, 6951749, 7944856, 9931070, 13903498, 19862140, 27806996, 34758745, 39724280, 55613992, 69517490, 139034980, 278069960]

約数ペア:

[(1, 278069960), (2, 139034980), (4, 69517490), (5, 55613992), (7, 39724280), (8, 34758745), (10, 27806996), (14, 19862140), (20, 13903498), (28, 9931070), (35, 7944856), (40, 6951749), (56, 4965535), (70, 3972428), (140, 1986214), (280, 993107)]