81427740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1357129}}^1$

素因数の和:1357141

約数の個数: 24

約数和(自身を含む): 227997840

約数和(自身を除く): 146570100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1357129, 2714258, 4071387, 5428516, 6785645, 8142774, 13571290, 16285548, 20356935, 27142580, 40713870, 81427740]

約数ペア:

[(1, 81427740), (2, 40713870), (3, 27142580), (4, 20356935), (5, 16285548), (6, 13571290), (10, 8142774), (12, 6785645), (15, 5428516), (20, 4071387), (30, 2714258), (60, 1357129)]