8255720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:698

約数の個数: 64

約数和(自身を含む): 20995200

約数和(自身を除く): 12739480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 647, 1160, 1276, 1294, 1595, 2552, 2588, 3190, 3235, 5176, 6380, 6470, 7117, 12760, 12940, 14234, 18763, 25880, 28468, 35585, 37526, 56936, 71170, 75052, 93815, 142340, 150104, 187630, 206393, 284680, 375260, 412786, 750520, 825572, 1031965, 1651144, 2063930, 4127860, 8255720]

約数ペア:

[(1, 8255720), (2, 4127860), (4, 2063930), (5, 1651144), (8, 1031965), (10, 825572), (11, 750520), (20, 412786), (22, 375260), (29, 284680), (40, 206393), (44, 187630), (55, 150104), (58, 142340), (88, 93815), (110, 75052), (116, 71170), (145, 56936), (220, 37526), (232, 35585), (290, 28468), (319, 25880), (440, 18763), (580, 14234), (638, 12940), (647, 12760), (1160, 7117), (1276, 6470), (1294, 6380), (1595, 5176), (2552, 3235), (2588, 3190)]