178142636

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:1003

約数の個数: 72

約数和(自身を含む): 387636480

約数和(自身を除く): 209493844

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 49, 86, 92, 98, 161, 172, 196, 301, 322, 602, 644, 919, 989, 1127, 1204, 1838, 1978, 2107, 2254, 3676, 3956, 4214, 4508, 6433, 6923, 8428, 12866, 13846, 21137, 25732, 27692, 39517, 42274, 45031, 48461, 79034, 84548, 90062, 96922, 147959, 158068, 180124, 193844, 276619, 295918, 553238, 591836, 908891, 1035713, 1106476, 1817782, 1936333, 2071426, 3635564, 3872666, 4142852, 6362237, 7745332, 12724474, 25448948, 44535659, 89071318, 178142636]

約数ペア:

[(1, 178142636), (2, 89071318), (4, 44535659), (7, 25448948), (14, 12724474), (23, 7745332), (28, 6362237), (43, 4142852), (46, 3872666), (49, 3635564), (86, 2071426), (92, 1936333), (98, 1817782), (161, 1106476), (172, 1035713), (196, 908891), (301, 591836), (322, 553238), (602, 295918), (644, 276619), (919, 193844), (989, 180124), (1127, 158068), (1204, 147959), (1838, 96922), (1978, 90062), (2107, 84548), (2254, 79034), (3676, 48461), (3956, 45031), (4214, 42274), (4508, 39517), (6433, 27692), (6923, 25732), (8428, 21137), (12866, 13846)]