20105620

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{1321}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 42309288

約数和(自身を除く): 22203668

約数列:

[1, 2, 4, 5, 10, 20, 761, 1321, 1522, 2642, 3044, 3805, 5284, 6605, 7610, 13210, 15220, 26420, 1005281, 2010562, 4021124, 5026405, 10052810, 20105620]

約数ペア:

[(1, 20105620), (2, 10052810), (4, 5026405), (5, 4021124), (10, 2010562), (20, 1005281), (761, 26420), (1321, 15220), (1522, 13210), (2642, 7610), (3044, 6605), (3805, 5284)]