668080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1193}}^1$

素因数の和:1213

約数の個数: 40

約数和(自身を含む): 1776672

約数和(自身を除く): 1108592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1193, 2386, 4772, 5965, 8351, 9544, 11930, 16702, 19088, 23860, 33404, 41755, 47720, 66808, 83510, 95440, 133616, 167020, 334040, 668080]

約数ペア:

[(1, 668080), (2, 334040), (4, 167020), (5, 133616), (7, 95440), (8, 83510), (10, 66808), (14, 47720), (16, 41755), (20, 33404), (28, 23860), (35, 19088), (40, 16702), (56, 11930), (70, 9544), (80, 8351), (112, 5965), (140, 4772), (280, 2386), (560, 1193)]