12738460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90989}}^1$

素因数の和:91005

約数の個数: 24

約数和(自身を含む): 30572640

約数和(自身を除く): 17834180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90989, 181978, 363956, 454945, 636923, 909890, 1273846, 1819780, 2547692, 3184615, 6369230, 12738460]

約数ペア:

[(1, 12738460), (2, 6369230), (4, 3184615), (5, 2547692), (7, 1819780), (10, 1273846), (14, 909890), (20, 636923), (28, 454945), (35, 363956), (70, 181978), (140, 90989)]