19856900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1$

素因数の和:1533

約数の個数: 72

約数和(自身を含む): 51871680

約数和(自身を除く): 32014780

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 133, 140, 175, 190, 266, 350, 380, 475, 532, 665, 700, 950, 1330, 1493, 1900, 2660, 2986, 3325, 5972, 6650, 7465, 10451, 13300, 14930, 20902, 28367, 29860, 37325, 41804, 52255, 56734, 74650, 104510, 113468, 141835, 149300, 198569, 209020, 261275, 283670, 397138, 522550, 567340, 709175, 794276, 992845, 1045100, 1418350, 1985690, 2836700, 3971380, 4964225, 9928450, 19856900]

約数ペア:

[(1, 19856900), (2, 9928450), (4, 4964225), (5, 3971380), (7, 2836700), (10, 1985690), (14, 1418350), (19, 1045100), (20, 992845), (25, 794276), (28, 709175), (35, 567340), (38, 522550), (50, 397138), (70, 283670), (76, 261275), (95, 209020), (100, 198569), (133, 149300), (140, 141835), (175, 113468), (190, 104510), (266, 74650), (350, 56734), (380, 52255), (475, 41804), (532, 37325), (665, 29860), (700, 28367), (950, 20902), (1330, 14930), (1493, 13300), (1900, 10451), (2660, 7465), (2986, 6650), (3325, 5972)]