129999800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{92857}}^1$

素因数の和:92880

約数の個数: 48

約数和(自身を含む): 345431760

約数和(自身を除く): 215431960

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, 92857, 185714, 371428, 464285, 649999, 742856, 928570, 1299998, 1857140, 2321425, 2599996, 3249995, 3714280, 4642850, 5199992, 6499990, 9285700, 12999980, 16249975, 18571400, 25999960, 32499950, 64999900, 129999800]

約数ペア:

[(1, 129999800), (2, 64999900), (4, 32499950), (5, 25999960), (7, 18571400), (8, 16249975), (10, 12999980), (14, 9285700), (20, 6499990), (25, 5199992), (28, 4642850), (35, 3714280), (40, 3249995), (50, 2599996), (56, 2321425), (70, 1857140), (100, 1299998), (140, 928570), (175, 742856), (200, 649999), (280, 464285), (350, 371428), (700, 185714), (1400, 92857)]