84345640

素因数分解:

$2^3\times 5^1\times {\mathrm{2108641}}^1$

素因数の和:2108652

約数の個数: 16

約数和(自身を含む): 189777780

約数和(自身を除く): 105432140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2108641, 4217282, 8434564, 10543205, 16869128, 21086410, 42172820, 84345640]

約数ペア:

[(1, 84345640), (2, 42172820), (4, 21086410), (5, 16869128), (8, 10543205), (10, 8434564), (20, 4217282), (40, 2108641)]