128010160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:842

約数の個数: 80

約数和(自身を含む): 311980032

約数和(自身を除く): 183969872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 496, 568, 620, 710, 727, 1136, 1240, 1420, 1454, 2201, 2480, 2840, 2908, 3635, 4402, 5680, 5816, 7270, 8804, 11005, 11632, 14540, 17608, 22010, 22537, 29080, 35216, 44020, 45074, 51617, 58160, 88040, 90148, 103234, 112685, 176080, 180296, 206468, 225370, 258085, 360592, 412936, 450740, 516170, 825872, 901480, 1032340, 1600127, 1802960, 2064680, 3200254, 4129360, 6400508, 8000635, 12801016, 16001270, 25602032, 32002540, 64005080, 128010160]

約数ペア:

[(1, 128010160), (2, 64005080), (4, 32002540), (5, 25602032), (8, 16001270), (10, 12801016), (16, 8000635), (20, 6400508), (31, 4129360), (40, 3200254), (62, 2064680), (71, 1802960), (80, 1600127), (124, 1032340), (142, 901480), (155, 825872), (248, 516170), (284, 450740), (310, 412936), (355, 360592), (496, 258085), (568, 225370), (620, 206468), (710, 180296), (727, 176080), (1136, 112685), (1240, 103234), (1420, 90148), (1454, 88040), (2201, 58160), (2480, 51617), (2840, 45074), (2908, 44020), (3635, 35216), (4402, 29080), (5680, 22537), (5816, 22010), (7270, 17608), (8804, 14540), (11005, 11632)]