19617760

素因数分解:

$2^5\times 5^1\times {\mathrm{122611}}^1$

素因数の和:122626

約数の個数: 24

約数和(自身を含む): 46347336

約数和(自身を除く): 26729576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122611, 245222, 490444, 613055, 980888, 1226110, 1961776, 2452220, 3923552, 4904440, 9808880, 19617760]

約数ペア:

[(1, 19617760), (2, 9808880), (4, 4904440), (5, 3923552), (8, 2452220), (10, 1961776), (16, 1226110), (20, 980888), (32, 613055), (40, 490444), (80, 245222), (160, 122611)]