19996820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14923}}^1$

素因数の和:14999

約数の個数: 24

約数和(自身を含む): 42622944

約数和(自身を除く): 22626124

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 14923, 29846, 59692, 74615, 149230, 298460, 999841, 1999682, 3999364, 4999205, 9998410, 19996820]

約数ペア:

[(1, 19996820), (2, 9998410), (4, 4999205), (5, 3999364), (10, 1999682), (20, 999841), (67, 298460), (134, 149230), (268, 74615), (335, 59692), (670, 29846), (1340, 14923)]