19168880

素因数分解:

$2^4\times 5^1\times {\mathrm{239611}}^1$

素因数の和:239624

約数の個数: 20

約数和(自身を含む): 44567832

約数和(自身を除く): 25398952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239611, 479222, 958444, 1198055, 1916888, 2396110, 3833776, 4792220, 9584440, 19168880]

約数ペア:

[(1, 19168880), (2, 9584440), (4, 4792220), (5, 3833776), (8, 2396110), (10, 1916888), (16, 1198055), (20, 958444), (40, 479222), (80, 239611)]