15965240

素因数分解:

$2^3\times 5^1\times {\mathrm{399131}}^1$

素因数の和:399142

約数の個数: 16

約数和(自身を含む): 35921880

約数和(自身を除く): 19956640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 399131, 798262, 1596524, 1995655, 3193048, 3991310, 7982620, 15965240]

約数ペア:

[(1, 15965240), (2, 7982620), (4, 3991310), (5, 3193048), (8, 1995655), (10, 1596524), (20, 798262), (40, 399131)]