218510020

素因数分解:

$2^2\times 5^1\times {\mathrm{2693}}^1\times {\mathrm{4057}}^1$

素因数の和:6759

約数の個数: 24

約数和(自身を含む): 459154584

約数和(自身を除く): 240644564

約数列:

[1, 2, 4, 5, 10, 20, 2693, 4057, 5386, 8114, 10772, 13465, 16228, 20285, 26930, 40570, 53860, 81140, 10925501, 21851002, 43702004, 54627505, 109255010, 218510020]

約数ペア:

[(1, 218510020), (2, 109255010), (4, 54627505), (5, 43702004), (10, 21851002), (20, 10925501), (2693, 81140), (4057, 53860), (5386, 40570), (8114, 26930), (10772, 20285), (13465, 16228)]