3999800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{2857}}^1$

素因数の和:2880

約数の個数: 48

約数和(自身を含む): 10631760

約数和(自身を除く): 6631960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 2857, 5714, 11428, 14285, 19999, 22856, 28570, 39998, 57140, 71425, 79996, 99995, 114280, 142850, 159992, 199990, 285700, 399980, 499975, 571400, 799960, 999950, 1999900, 3999800]

約数ペア:

[(1, 3999800), (2, 1999900), (4, 999950), (5, 799960), (7, 571400), (8, 499975), (10, 399980), (14, 285700), (20, 199990), (25, 159992), (28, 142850), (35, 114280), (40, 99995), (50, 79996), (56, 71425), (70, 57140), (100, 39998), (140, 28570), (175, 22856), (200, 19999), (280, 14285), (350, 11428), (700, 5714), (1400, 2857)]