15957320

素因数分解:

$2^3\times 5^1\times {\mathrm{398933}}^1$

素因数の和:398944

約数の個数: 16

約数和(自身を含む): 35904060

約数和(自身を除く): 19946740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 398933, 797866, 1595732, 1994665, 3191464, 3989330, 7978660, 15957320]

約数ペア:

[(1, 15957320), (2, 7978660), (4, 3989330), (5, 3191464), (8, 1994665), (10, 1595732), (20, 797866), (40, 398933)]