19228880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21851}}^1$

素因数の和:21875

約数の個数: 40

約数和(自身を含む): 48773664

約数和(自身を除く): 29544784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21851, 43702, 87404, 109255, 174808, 218510, 240361, 349616, 437020, 480722, 874040, 961444, 1201805, 1748080, 1922888, 2403610, 3845776, 4807220, 9614440, 19228880]

約数ペア:

[(1, 19228880), (2, 9614440), (4, 4807220), (5, 3845776), (8, 2403610), (10, 1922888), (11, 1748080), (16, 1201805), (20, 961444), (22, 874040), (40, 480722), (44, 437020), (55, 349616), (80, 240361), (88, 218510), (110, 174808), (176, 109255), (220, 87404), (440, 43702), (880, 21851)]