81817740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454543}}^1$

素因数の和:454558

約数の個数: 36

約数和(自身を含む): 248181024

約数和(自身を除く): 166363284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454543, 909086, 1363629, 1818172, 2272715, 2727258, 4090887, 4545430, 5454516, 6818145, 8181774, 9090860, 13636290, 16363548, 20454435, 27272580, 40908870, 81817740]

約数ペア:

[(1, 81817740), (2, 40908870), (3, 27272580), (4, 20454435), (5, 16363548), (6, 13636290), (9, 9090860), (10, 8181774), (12, 6818145), (15, 5454516), (18, 4545430), (20, 4090887), (30, 2727258), (36, 2272715), (45, 1818172), (60, 1363629), (90, 909086), (180, 454543)]