126820420

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{7649}}^1$

素因数の和:8487

約数の個数: 24

約数和(自身を含む): 266679000

約数和(自身を除く): 139858580

約数列:

[1, 2, 4, 5, 10, 20, 829, 1658, 3316, 4145, 7649, 8290, 15298, 16580, 30596, 38245, 76490, 152980, 6341021, 12682042, 25364084, 31705105, 63410210, 126820420]

約数ペア:

[(1, 126820420), (2, 63410210), (4, 31705105), (5, 25364084), (10, 12682042), (20, 6341021), (829, 152980), (1658, 76490), (3316, 38245), (4145, 30596), (7649, 16580), (8290, 15298)]