18463000

素因数分解:

$2^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 64

約数和(自身を含む): 44460000

約数和(自身を除く): 25997000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 148, 185, 200, 250, 296, 370, 499, 500, 740, 925, 998, 1000, 1480, 1850, 1996, 2495, 3700, 3992, 4625, 4990, 7400, 9250, 9980, 12475, 18463, 18500, 19960, 24950, 36926, 37000, 49900, 62375, 73852, 92315, 99800, 124750, 147704, 184630, 249500, 369260, 461575, 499000, 738520, 923150, 1846300, 2307875, 3692600, 4615750, 9231500, 18463000]

約数ペア:

[(1, 18463000), (2, 9231500), (4, 4615750), (5, 3692600), (8, 2307875), (10, 1846300), (20, 923150), (25, 738520), (37, 499000), (40, 461575), (50, 369260), (74, 249500), (100, 184630), (125, 147704), (148, 124750), (185, 99800), (200, 92315), (250, 73852), (296, 62375), (370, 49900), (499, 37000), (500, 36926), (740, 24950), (925, 19960), (998, 18500), (1000, 18463), (1480, 12475), (1850, 9980), (1996, 9250), (2495, 7400), (3700, 4990), (3992, 4625)]