2161860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 6120576

約数和(自身を除く): 3958716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 263, 274, 411, 526, 548, 685, 789, 822, 1052, 1315, 1370, 1578, 1644, 2055, 2630, 2740, 3156, 3945, 4110, 5260, 7890, 8220, 15780, 36031, 72062, 108093, 144124, 180155, 216186, 360310, 432372, 540465, 720620, 1080930, 2161860]

約数ペア:

[(1, 2161860), (2, 1080930), (3, 720620), (4, 540465), (5, 432372), (6, 360310), (10, 216186), (12, 180155), (15, 144124), (20, 108093), (30, 72062), (60, 36031), (137, 15780), (263, 8220), (274, 7890), (411, 5260), (526, 4110), (548, 3945), (685, 3156), (789, 2740), (822, 2630), (1052, 2055), (1315, 1644), (1370, 1578)]