813565520

素因数分解:

$2^4\times 5^1\times {\mathrm{10169569}}^1$

素因数の和:10169582

約数の個数: 20

約数和(自身を含む): 1891540020

約数和(自身を除く): 1077974500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10169569, 20339138, 40678276, 50847845, 81356552, 101695690, 162713104, 203391380, 406782760, 813565520]

約数ペア:

[(1, 813565520), (2, 406782760), (4, 203391380), (5, 162713104), (8, 101695690), (10, 81356552), (16, 50847845), (20, 40678276), (40, 20339138), (80, 10169569)]