81158580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450881}}^1$

素因数の和:450896

約数の個数: 36

約数和(自身を含む): 246181572

約数和(自身を除く): 165022992

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450881, 901762, 1352643, 1803524, 2254405, 2705286, 4057929, 4508810, 5410572, 6763215, 8115858, 9017620, 13526430, 16231716, 20289645, 27052860, 40579290, 81158580]

約数ペア:

[(1, 81158580), (2, 40579290), (3, 27052860), (4, 20289645), (5, 16231716), (6, 13526430), (9, 9017620), (10, 8115858), (12, 6763215), (15, 5410572), (18, 4508810), (20, 4057929), (30, 2705286), (36, 2254405), (45, 1803524), (60, 1352643), (90, 901762), (180, 450881)]