18820690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{859}}^1$

素因数の和:1186

約数の個数: 32

約数和(自身を含む): 38885760

約数和(自身を除く): 20065070

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 313, 626, 859, 1565, 1718, 2191, 3130, 4295, 4382, 6013, 8590, 10955, 12026, 21910, 30065, 60130, 268867, 537734, 1344335, 1882069, 2688670, 3764138, 9410345, 18820690]

約数ペア:

[(1, 18820690), (2, 9410345), (5, 3764138), (7, 2688670), (10, 1882069), (14, 1344335), (35, 537734), (70, 268867), (313, 60130), (626, 30065), (859, 21910), (1565, 12026), (1718, 10955), (2191, 8590), (3130, 6013), (4295, 4382)]