2906740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 6531840

約数和(自身を除く): 3625100

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 89, 92, 115, 142, 178, 230, 284, 355, 356, 445, 460, 710, 890, 1420, 1633, 1780, 2047, 3266, 4094, 6319, 6532, 8165, 8188, 10235, 12638, 16330, 20470, 25276, 31595, 32660, 40940, 63190, 126380, 145337, 290674, 581348, 726685, 1453370, 2906740]

約数ペア:

[(1, 2906740), (2, 1453370), (4, 726685), (5, 581348), (10, 290674), (20, 145337), (23, 126380), (46, 63190), (71, 40940), (89, 32660), (92, 31595), (115, 25276), (142, 20470), (178, 16330), (230, 12638), (284, 10235), (355, 8188), (356, 8165), (445, 6532), (460, 6319), (710, 4094), (890, 3266), (1420, 2047), (1633, 1780)]