290296720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{518387}}^1$

素因数の和:518407

約数の個数: 40

約数和(自身を含む): 771361344

約数和(自身を除く): 481064624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 518387, 1036774, 2073548, 2591935, 3628709, 4147096, 5183870, 7257418, 8294192, 10367740, 14514836, 18143545, 20735480, 29029672, 36287090, 41470960, 58059344, 72574180, 145148360, 290296720]

約数ペア:

[(1, 290296720), (2, 145148360), (4, 72574180), (5, 58059344), (7, 41470960), (8, 36287090), (10, 29029672), (14, 20735480), (16, 18143545), (20, 14514836), (28, 10367740), (35, 8294192), (40, 7257418), (56, 5183870), (70, 4147096), (80, 3628709), (112, 2591935), (140, 2073548), (280, 1036774), (560, 518387)]