28815620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{35141}}^1$

素因数の和:35191

約数の個数: 24

約数和(自身を含む): 61990488

約数和(自身を除く): 33174868

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 35141, 70282, 140564, 175705, 351410, 702820, 1440781, 2881562, 5763124, 7203905, 14407810, 28815620]

約数ペア:

[(1, 28815620), (2, 14407810), (4, 7203905), (5, 5763124), (10, 2881562), (20, 1440781), (41, 702820), (82, 351410), (164, 175705), (205, 140564), (410, 70282), (820, 35141)]