64005080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 150958080

約数和(自身を除く): 86953000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 727, 1240, 1420, 1454, 2201, 2840, 2908, 3635, 4402, 5816, 7270, 8804, 11005, 14540, 17608, 22010, 22537, 29080, 44020, 45074, 51617, 88040, 90148, 103234, 112685, 180296, 206468, 225370, 258085, 412936, 450740, 516170, 901480, 1032340, 1600127, 2064680, 3200254, 6400508, 8000635, 12801016, 16001270, 32002540, 64005080]

約数ペア:

[(1, 64005080), (2, 32002540), (4, 16001270), (5, 12801016), (8, 8000635), (10, 6400508), (20, 3200254), (31, 2064680), (40, 1600127), (62, 1032340), (71, 901480), (124, 516170), (142, 450740), (155, 412936), (248, 258085), (284, 225370), (310, 206468), (355, 180296), (568, 112685), (620, 103234), (710, 90148), (727, 88040), (1240, 51617), (1420, 45074), (1454, 44020), (2201, 29080), (2840, 22537), (2908, 22010), (3635, 17608), (4402, 14540), (5816, 11005), (7270, 8804)]