20147800900

素因数分解:

$2^2\times 5^2\times {\mathrm{201478009}}^1$

素因数の和:201478023

約数の個数: 18

約数和(自身を含む): 43720728170

約数和(自身を除く): 23572927270

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201478009, 402956018, 805912036, 1007390045, 2014780090, 4029560180, 5036950225, 10073900450, 20147800900]

約数ペア:

[(1, 20147800900), (2, 10073900450), (4, 5036950225), (5, 4029560180), (10, 2014780090), (20, 1007390045), (25, 805912036), (50, 402956018), (100, 201478009)]