42747620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19609}}^1$

素因数の和:19727

約数の個数: 24

約数和(自身を含む): 90598200

約数和(自身を除く): 47850580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 19609, 39218, 78436, 98045, 196090, 392180, 2137381, 4274762, 8549524, 10686905, 21373810, 42747620]

約数ペア:

[(1, 42747620), (2, 21373810), (4, 10686905), (5, 8549524), (10, 4274762), (20, 2137381), (109, 392180), (218, 196090), (436, 98045), (545, 78436), (1090, 39218), (2180, 19609)]