20806740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{727}}^1$

素因数の和:798

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45237420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 90, 106, 108, 135, 159, 180, 212, 265, 270, 318, 477, 530, 540, 636, 727, 795, 954, 1060, 1431, 1454, 1590, 1908, 2181, 2385, 2862, 2908, 3180, 3635, 4362, 4770, 5724, 6543, 7155, 7270, 8724, 9540, 10905, 13086, 14310, 14540, 19629, 21810, 26172, 28620, 32715, 38531, 39258, 43620, 65430, 77062, 78516, 98145, 115593, 130860, 154124, 192655, 196290, 231186, 346779, 385310, 392580, 462372, 577965, 693558, 770620, 1040337, 1155930, 1387116, 1733895, 2080674, 2311860, 3467790, 4161348, 5201685, 6935580, 10403370, 20806740]

約数ペア:

[(1, 20806740), (2, 10403370), (3, 6935580), (4, 5201685), (5, 4161348), (6, 3467790), (9, 2311860), (10, 2080674), (12, 1733895), (15, 1387116), (18, 1155930), (20, 1040337), (27, 770620), (30, 693558), (36, 577965), (45, 462372), (53, 392580), (54, 385310), (60, 346779), (90, 231186), (106, 196290), (108, 192655), (135, 154124), (159, 130860), (180, 115593), (212, 98145), (265, 78516), (270, 77062), (318, 65430), (477, 43620), (530, 39258), (540, 38531), (636, 32715), (727, 28620), (795, 26172), (954, 21810), (1060, 19629), (1431, 14540), (1454, 14310), (1590, 13086), (1908, 10905), (2181, 9540), (2385, 8724), (2862, 7270), (2908, 7155), (3180, 6543), (3635, 5724), (4362, 4770)]