16660240

素因数分解:

$2^4\times 5^1\times {\mathrm{208253}}^1$

素因数の和:208266

約数の個数: 20

約数和(自身を含む): 38735244

約数和(自身を除く): 22075004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208253, 416506, 833012, 1041265, 1666024, 2082530, 3332048, 4165060, 8330120, 16660240]

約数ペア:

[(1, 16660240), (2, 8330120), (4, 4165060), (5, 3332048), (8, 2082530), (10, 1666024), (16, 1041265), (20, 833012), (40, 416506), (80, 208253)]