28215880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9161}}^1$

素因数の和:9190

約数の個数: 64

約数和(自身を含む): 79159680

約数和(自身を除く): 50943800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 9161, 18322, 36644, 45805, 64127, 73288, 91610, 100771, 128254, 183220, 201542, 256508, 320635, 366440, 403084, 503855, 513016, 641270, 705397, 806168, 1007710, 1282540, 1410794, 2015420, 2565080, 2821588, 3526985, 4030840, 5643176, 7053970, 14107940, 28215880]

約数ペア:

[(1, 28215880), (2, 14107940), (4, 7053970), (5, 5643176), (7, 4030840), (8, 3526985), (10, 2821588), (11, 2565080), (14, 2015420), (20, 1410794), (22, 1282540), (28, 1007710), (35, 806168), (40, 705397), (44, 641270), (55, 513016), (56, 503855), (70, 403084), (77, 366440), (88, 320635), (110, 256508), (140, 201542), (154, 183220), (220, 128254), (280, 100771), (308, 91610), (385, 73288), (440, 64127), (616, 45805), (770, 36644), (1540, 18322), (3080, 9161)]