201920720

素因数分解:

$2^4\times 5^1\times {\mathrm{2524009}}^1$

素因数の和:2524022

約数の個数: 20

約数和(自身を含む): 469465860

約数和(自身を除く): 267545140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2524009, 5048018, 10096036, 12620045, 20192072, 25240090, 40384144, 50480180, 100960360, 201920720]

約数ペア:

[(1, 201920720), (2, 100960360), (4, 50480180), (5, 40384144), (8, 25240090), (10, 20192072), (16, 12620045), (20, 10096036), (40, 5048018), (80, 2524009)]