15688880

素因数分解:

$2^4\times 5^1\times {\mathrm{196111}}^1$

素因数の和:196124

約数の個数: 20

約数和(自身を含む): 36476832

約数和(自身を除く): 20787952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 196111, 392222, 784444, 980555, 1568888, 1961110, 3137776, 3922220, 7844440, 15688880]

約数ペア:

[(1, 15688880), (2, 7844440), (4, 3922220), (5, 3137776), (8, 1961110), (10, 1568888), (16, 980555), (20, 784444), (40, 392222), (80, 196111)]