137920

素因数分解:

$2^6\times 5^1\times {\mathrm{431}}^1$

素因数の和:448

約数の個数: 28

約数和(自身を含む): 329184

約数和(自身を除く): 191264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 431, 862, 1724, 2155, 3448, 4310, 6896, 8620, 13792, 17240, 27584, 34480, 68960, 137920]

約数ペア:

[(1, 137920), (2, 68960), (4, 34480), (5, 27584), (8, 17240), (10, 13792), (16, 8620), (20, 6896), (32, 4310), (40, 3448), (64, 2155), (80, 1724), (160, 862), (320, 431)]