28563920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4637}}^1$

素因数の和:4668

約数の個数: 80

約数和(自身を含む): 82816128

約数和(自身を除く): 54252208

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 4637, 6160, 9274, 18548, 23185, 32459, 37096, 46370, 51007, 64918, 74192, 92740, 102014, 129836, 162295, 185480, 204028, 255035, 259672, 324590, 357049, 370960, 408056, 510070, 519344, 649180, 714098, 816112, 1020140, 1298360, 1428196, 1785245, 2040280, 2596720, 2856392, 3570490, 4080560, 5712784, 7140980, 14281960, 28563920]

約数ペア:

[(1, 28563920), (2, 14281960), (4, 7140980), (5, 5712784), (7, 4080560), (8, 3570490), (10, 2856392), (11, 2596720), (14, 2040280), (16, 1785245), (20, 1428196), (22, 1298360), (28, 1020140), (35, 816112), (40, 714098), (44, 649180), (55, 519344), (56, 510070), (70, 408056), (77, 370960), (80, 357049), (88, 324590), (110, 259672), (112, 255035), (140, 204028), (154, 185480), (176, 162295), (220, 129836), (280, 102014), (308, 92740), (385, 74192), (440, 64918), (560, 51007), (616, 46370), (770, 37096), (880, 32459), (1232, 23185), (1540, 18548), (3080, 9274), (4637, 6160)]