205013520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{284741}}^1$

素因数の和:284760

約数の個数: 60

約数和(自身を含む): 688506156

約数和(自身を除く): 483492636

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 284741, 569482, 854223, 1138964, 1423705, 1708446, 2277928, 2562669, 2847410, 3416892, 4271115, 4555856, 5125338, 5694820, 6833784, 8542230, 10250676, 11389640, 12813345, 13667568, 17084460, 20501352, 22779280, 25626690, 34168920, 41002704, 51253380, 68337840, 102506760, 205013520]

約数ペア:

[(1, 205013520), (2, 102506760), (3, 68337840), (4, 51253380), (5, 41002704), (6, 34168920), (8, 25626690), (9, 22779280), (10, 20501352), (12, 17084460), (15, 13667568), (16, 12813345), (18, 11389640), (20, 10250676), (24, 8542230), (30, 6833784), (36, 5694820), (40, 5125338), (45, 4555856), (48, 4271115), (60, 3416892), (72, 2847410), (80, 2562669), (90, 2277928), (120, 1708446), (144, 1423705), (180, 1138964), (240, 854223), (360, 569482), (720, 284741)]