2440940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:198

約数の個数: 36

約数和(自身を含む): 5338368

約数和(自身を除く): 2897428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 961, 1270, 1922, 2540, 3844, 3937, 4805, 7874, 9610, 15748, 19220, 19685, 39370, 78740, 122047, 244094, 488188, 610235, 1220470, 2440940]

約数ペア:

[(1, 2440940), (2, 1220470), (4, 610235), (5, 488188), (10, 244094), (20, 122047), (31, 78740), (62, 39370), (124, 19685), (127, 19220), (155, 15748), (254, 9610), (310, 7874), (508, 4805), (620, 3937), (635, 3844), (961, 2540), (1270, 1922)]