81208820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52733}}^1$

素因数の和:52760

約数の個数: 48

約数和(自身を含む): 212623488

約数和(自身を除く): 131414668

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52733, 105466, 210932, 263665, 369131, 527330, 580063, 738262, 1054660, 1160126, 1476524, 1845655, 2320252, 2900315, 3691310, 4060441, 5800630, 7382620, 8120882, 11601260, 16241764, 20302205, 40604410, 81208820]

約数ペア:

[(1, 81208820), (2, 40604410), (4, 20302205), (5, 16241764), (7, 11601260), (10, 8120882), (11, 7382620), (14, 5800630), (20, 4060441), (22, 3691310), (28, 2900315), (35, 2320252), (44, 1845655), (55, 1476524), (70, 1160126), (77, 1054660), (110, 738262), (140, 580063), (154, 527330), (220, 369131), (308, 263665), (385, 210932), (770, 105466), (1540, 52733)]