28293740

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2207}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 59536512

約数和(自身を除く): 31242772

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2207, 2564, 3205, 4414, 6410, 8828, 11035, 12820, 22070, 44140, 1414687, 2829374, 5658748, 7073435, 14146870, 28293740]

約数ペア:

[(1, 28293740), (2, 14146870), (4, 7073435), (5, 5658748), (10, 2829374), (20, 1414687), (641, 44140), (1282, 22070), (2207, 12820), (2564, 11035), (3205, 8828), (4414, 6410)]