122920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{439}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 316800

約数和(自身を除く): 193880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 439, 878, 1756, 2195, 3073, 3512, 4390, 6146, 8780, 12292, 15365, 17560, 24584, 30730, 61460, 122920]

約数ペア:

[(1, 122920), (2, 61460), (4, 30730), (5, 24584), (7, 17560), (8, 15365), (10, 12292), (14, 8780), (20, 6146), (28, 4390), (35, 3512), (40, 3073), (56, 2195), (70, 1756), (140, 878), (280, 439)]