990808

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 2288160

約数和(自身を除く): 1297352

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 1361, 2722, 5444, 9527, 10888, 17693, 19054, 35386, 38108, 70772, 76216, 123851, 141544, 247702, 495404, 990808]

約数ペア:

[(1, 990808), (2, 495404), (4, 247702), (7, 141544), (8, 123851), (13, 76216), (14, 70772), (26, 38108), (28, 35386), (52, 19054), (56, 17693), (91, 10888), (104, 9527), (182, 5444), (364, 2722), (728, 1361)]