1720880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{439}}^1$

素因数の和:466

約数の個数: 60

約数和(自身を含む): 4664880

約数和(自身を除く): 2944000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 439, 490, 560, 784, 878, 980, 1756, 1960, 2195, 3073, 3512, 3920, 4390, 6146, 7024, 8780, 12292, 15365, 17560, 21511, 24584, 30730, 35120, 43022, 49168, 61460, 86044, 107555, 122920, 172088, 215110, 245840, 344176, 430220, 860440, 1720880]

約数ペア:

[(1, 1720880), (2, 860440), (4, 430220), (5, 344176), (7, 245840), (8, 215110), (10, 172088), (14, 122920), (16, 107555), (20, 86044), (28, 61460), (35, 49168), (40, 43022), (49, 35120), (56, 30730), (70, 24584), (80, 21511), (98, 17560), (112, 15365), (140, 12292), (196, 8780), (245, 7024), (280, 6146), (392, 4390), (439, 3920), (490, 3512), (560, 3073), (784, 2195), (878, 1960), (980, 1756)]