72205520

素因数分解:

$2^4\times 5^1\times {\mathrm{902569}}^1$

素因数の和:902582

約数の個数: 20

約数和(自身を含む): 167878020

約数和(自身を除く): 95672500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 902569, 1805138, 3610276, 4512845, 7220552, 9025690, 14441104, 18051380, 36102760, 72205520]

約数ペア:

[(1, 72205520), (2, 36102760), (4, 18051380), (5, 14441104), (8, 9025690), (10, 7220552), (16, 4512845), (20, 3610276), (40, 1805138), (80, 902569)]