81082480

素因数分解:

$2^4\times 5^1\times {\mathrm{1013531}}^1$

素因数の和:1013544

約数の個数: 20

約数和(自身を含む): 188516952

約数和(自身を除く): 107434472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013531, 2027062, 4054124, 5067655, 8108248, 10135310, 16216496, 20270620, 40541240, 81082480]

約数ペア:

[(1, 81082480), (2, 40541240), (4, 20270620), (5, 16216496), (8, 10135310), (10, 8108248), (16, 5067655), (20, 4054124), (40, 2027062), (80, 1013531)]