20489367020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10143251}}^1$

素因数の和:10143361

約数の個数: 24

約数和(自身を含む): 43453691568

約数和(自身を除く): 22964324548

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10143251, 20286502, 40573004, 50716255, 101432510, 202865020, 1024468351, 2048936702, 4097873404, 5122341755, 10244683510, 20489367020]

約数ペア:

[(1, 20489367020), (2, 10244683510), (4, 5122341755), (5, 4097873404), (10, 2048936702), (20, 1024468351), (101, 202865020), (202, 101432510), (404, 50716255), (505, 40573004), (1010, 20286502), (2020, 10143251)]