1280368

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1912

約数の個数: 20

約数和(自身を含む): 2539768

約数和(自身を除く): 1259400

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1861, 3722, 7444, 14888, 29776, 80023, 160046, 320092, 640184, 1280368]

約数ペア:

[(1, 1280368), (2, 640184), (4, 320092), (8, 160046), (16, 80023), (43, 29776), (86, 14888), (172, 7444), (344, 3722), (688, 1861)]