81667620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453709}}^1$

素因数の和:453724

約数の個数: 36

約数和(自身を含む): 247725660

約数和(自身を除く): 166058040

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453709, 907418, 1361127, 1814836, 2268545, 2722254, 4083381, 4537090, 5444508, 6805635, 8166762, 9074180, 13611270, 16333524, 20416905, 27222540, 40833810, 81667620]

約数ペア:

[(1, 81667620), (2, 40833810), (3, 27222540), (4, 20416905), (5, 16333524), (6, 13611270), (9, 9074180), (10, 8166762), (12, 6805635), (15, 5444508), (18, 4537090), (20, 4083381), (30, 2722254), (36, 2268545), (45, 1814836), (60, 1361127), (90, 907418), (180, 453709)]