2399440

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 5658120

約数和(自身を除く): 3258680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 337, 356, 445, 674, 712, 890, 1348, 1424, 1685, 1780, 2696, 3370, 3560, 5392, 6740, 7120, 13480, 26960, 29993, 59986, 119972, 149965, 239944, 299930, 479888, 599860, 1199720, 2399440]

約数ペア:

[(1, 2399440), (2, 1199720), (4, 599860), (5, 479888), (8, 299930), (10, 239944), (16, 149965), (20, 119972), (40, 59986), (80, 29993), (89, 26960), (178, 13480), (337, 7120), (356, 6740), (445, 5392), (674, 3560), (712, 3370), (890, 2696), (1348, 1780), (1424, 1685)]