289484560

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{18749}}^1$

素因数の和:18955

約数の個数: 40

約数和(自身を含む): 676575000

約数和(自身を除く): 387090440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 18749, 37498, 74996, 93745, 149992, 187490, 299984, 374980, 749960, 1499920, 3618557, 7237114, 14474228, 18092785, 28948456, 36185570, 57896912, 72371140, 144742280, 289484560]

約数ペア:

[(1, 289484560), (2, 144742280), (4, 72371140), (5, 57896912), (8, 36185570), (10, 28948456), (16, 18092785), (20, 14474228), (40, 7237114), (80, 3618557), (193, 1499920), (386, 749960), (772, 374980), (965, 299984), (1544, 187490), (1930, 149992), (3088, 93745), (3860, 74996), (7720, 37498), (15440, 18749)]