81481850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{373}}^1$

素因数の和:659

約数の個数: 48

約数和(自身を含む): 161527608

約数和(自身を除く): 80045758

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 257, 373, 425, 514, 746, 850, 1285, 1865, 2570, 3730, 4369, 6341, 6425, 8738, 9325, 12682, 12850, 18650, 21845, 31705, 43690, 63410, 95861, 109225, 158525, 191722, 218450, 317050, 479305, 958610, 1629637, 2396525, 3259274, 4793050, 8148185, 16296370, 40740925, 81481850]

約数ペア:

[(1, 81481850), (2, 40740925), (5, 16296370), (10, 8148185), (17, 4793050), (25, 3259274), (34, 2396525), (50, 1629637), (85, 958610), (170, 479305), (257, 317050), (373, 218450), (425, 191722), (514, 158525), (746, 109225), (850, 95861), (1285, 63410), (1865, 43690), (2570, 31705), (3730, 21845), (4369, 18650), (6341, 12850), (6425, 12682), (8738, 9325)]