20258760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2137}}^1$

素因数の和:2230

約数の個数: 64

約数和(自身を含む): 61574400

約数和(自身を除く): 41315640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2137, 2370, 3160, 4274, 4740, 6411, 8548, 9480, 10685, 12822, 17096, 21370, 25644, 32055, 42740, 51288, 64110, 85480, 128220, 168823, 256440, 337646, 506469, 675292, 844115, 1012938, 1350584, 1688230, 2025876, 2532345, 3376460, 4051752, 5064690, 6752920, 10129380, 20258760]

約数ペア:

[(1, 20258760), (2, 10129380), (3, 6752920), (4, 5064690), (5, 4051752), (6, 3376460), (8, 2532345), (10, 2025876), (12, 1688230), (15, 1350584), (20, 1012938), (24, 844115), (30, 675292), (40, 506469), (60, 337646), (79, 256440), (120, 168823), (158, 128220), (237, 85480), (316, 64110), (395, 51288), (474, 42740), (632, 32055), (790, 25644), (948, 21370), (1185, 17096), (1580, 12822), (1896, 10685), (2137, 9480), (2370, 8548), (3160, 6411), (4274, 4740)]