2721880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{9721}}^1$

素因数の和:9739

約数の個数: 32

約数和(自身を含む): 6999840

約数和(自身を除く): 4277960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 9721, 19442, 38884, 48605, 68047, 77768, 97210, 136094, 194420, 272188, 340235, 388840, 544376, 680470, 1360940, 2721880]

約数ペア:

[(1, 2721880), (2, 1360940), (4, 680470), (5, 544376), (7, 388840), (8, 340235), (10, 272188), (14, 194420), (20, 136094), (28, 97210), (35, 77768), (40, 68047), (56, 48605), (70, 38884), (140, 19442), (280, 9721)]