18722480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:586

約数の個数: 80

約数和(自身を含む): 50592000

約数和(自身を除く): 31869520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 499, 536, 560, 670, 938, 998, 1072, 1340, 1876, 1996, 2345, 2495, 2680, 3493, 3752, 3992, 4690, 4990, 5360, 6986, 7504, 7984, 9380, 9980, 13972, 17465, 18760, 19960, 27944, 33433, 34930, 37520, 39920, 55888, 66866, 69860, 133732, 139720, 167165, 234031, 267464, 279440, 334330, 468062, 534928, 668660, 936124, 1170155, 1337320, 1872248, 2340310, 2674640, 3744496, 4680620, 9361240, 18722480]

約数ペア:

[(1, 18722480), (2, 9361240), (4, 4680620), (5, 3744496), (7, 2674640), (8, 2340310), (10, 1872248), (14, 1337320), (16, 1170155), (20, 936124), (28, 668660), (35, 534928), (40, 468062), (56, 334330), (67, 279440), (70, 267464), (80, 234031), (112, 167165), (134, 139720), (140, 133732), (268, 69860), (280, 66866), (335, 55888), (469, 39920), (499, 37520), (536, 34930), (560, 33433), (670, 27944), (938, 19960), (998, 18760), (1072, 17465), (1340, 13972), (1876, 9980), (1996, 9380), (2345, 7984), (2495, 7504), (2680, 6986), (3493, 5360), (3752, 4990), (3992, 4690)]