81402540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1356709}}^1$

素因数の和:1356721

約数の個数: 24

約数和(自身を含む): 227927280

約数和(自身を除く): 146524740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1356709, 2713418, 4070127, 5426836, 6783545, 8140254, 13567090, 16280508, 20350635, 27134180, 40701270, 81402540]

約数ペア:

[(1, 81402540), (2, 40701270), (3, 27134180), (4, 20350635), (5, 16280508), (6, 13567090), (10, 8140254), (12, 6783545), (15, 5426836), (20, 4070127), (30, 2713418), (60, 1356709)]