81592980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{194269}}^1$

素因数の和:194288

約数の個数: 48

約数和(自身を含む): 261098880

約数和(自身を除く): 179505900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 194269, 388538, 582807, 777076, 971345, 1165614, 1359883, 1942690, 2331228, 2719766, 2914035, 3885380, 4079649, 5439532, 5828070, 6799415, 8159298, 11656140, 13598830, 16318596, 20398245, 27197660, 40796490, 81592980]

約数ペア:

[(1, 81592980), (2, 40796490), (3, 27197660), (4, 20398245), (5, 16318596), (6, 13598830), (7, 11656140), (10, 8159298), (12, 6799415), (14, 5828070), (15, 5439532), (20, 4079649), (21, 3885380), (28, 2914035), (30, 2719766), (35, 2331228), (42, 1942690), (60, 1359883), (70, 1165614), (84, 971345), (105, 777076), (140, 582807), (210, 388538), (420, 194269)]