81212580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451181}}^1$

素因数の和:451196

約数の個数: 36

約数和(自身を含む): 246345372

約数和(自身を除く): 165132792

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451181, 902362, 1353543, 1804724, 2255905, 2707086, 4060629, 4511810, 5414172, 6767715, 8121258, 9023620, 13535430, 16242516, 20303145, 27070860, 40606290, 81212580]

約数ペア:

[(1, 81212580), (2, 40606290), (3, 27070860), (4, 20303145), (5, 16242516), (6, 13535430), (9, 9023620), (10, 8121258), (12, 6767715), (15, 5414172), (18, 4511810), (20, 4060629), (30, 2707086), (36, 2255905), (45, 1804724), (60, 1353543), (90, 902362), (180, 451181)]