139486540

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{14321}}^1$

素因数の和:14817

約数の個数: 24

約数和(自身を含む): 293543712

約数和(自身を除く): 154057172

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 14321, 28642, 57284, 71605, 143210, 286420, 6974327, 13948654, 27897308, 34871635, 69743270, 139486540]

約数ペア:

[(1, 139486540), (2, 69743270), (4, 34871635), (5, 27897308), (10, 13948654), (20, 6974327), (487, 286420), (974, 143210), (1948, 71605), (2435, 57284), (4870, 28642), (9740, 14321)]