19105760

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2777}}^1$

素因数の和:2835

約数の個数: 48

約数和(自身を含む): 46203696

約数和(自身を除く): 27097936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2777, 3440, 5554, 6880, 11108, 13885, 22216, 27770, 44432, 55540, 88864, 111080, 119411, 222160, 238822, 444320, 477644, 597055, 955288, 1194110, 1910576, 2388220, 3821152, 4776440, 9552880, 19105760]

約数ペア:

[(1, 19105760), (2, 9552880), (4, 4776440), (5, 3821152), (8, 2388220), (10, 1910576), (16, 1194110), (20, 955288), (32, 597055), (40, 477644), (43, 444320), (80, 238822), (86, 222160), (160, 119411), (172, 111080), (215, 88864), (344, 55540), (430, 44432), (688, 27770), (860, 22216), (1376, 13885), (1720, 11108), (2777, 6880), (3440, 5554)]