18999000

素因数分解:

$2^3\times 3^2\times 5^3\times {\mathrm{2111}}^1$

素因数の和:2138

約数の個数: 96

約数和(自身を含む): 64247040

約数和(自身を除く): 45248040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 750, 900, 1000, 1125, 1500, 1800, 2111, 2250, 3000, 4222, 4500, 6333, 8444, 9000, 10555, 12666, 16888, 18999, 21110, 25332, 31665, 37998, 42220, 50664, 52775, 63330, 75996, 84440, 94995, 105550, 126660, 151992, 158325, 189990, 211100, 253320, 263875, 316650, 379980, 422200, 474975, 527750, 633300, 759960, 791625, 949950, 1055500, 1266600, 1583250, 1899900, 2111000, 2374875, 3166500, 3799800, 4749750, 6333000, 9499500, 18999000]

約数ペア:

[(1, 18999000), (2, 9499500), (3, 6333000), (4, 4749750), (5, 3799800), (6, 3166500), (8, 2374875), (9, 2111000), (10, 1899900), (12, 1583250), (15, 1266600), (18, 1055500), (20, 949950), (24, 791625), (25, 759960), (30, 633300), (36, 527750), (40, 474975), (45, 422200), (50, 379980), (60, 316650), (72, 263875), (75, 253320), (90, 211100), (100, 189990), (120, 158325), (125, 151992), (150, 126660), (180, 105550), (200, 94995), (225, 84440), (250, 75996), (300, 63330), (360, 52775), (375, 50664), (450, 42220), (500, 37998), (600, 31665), (750, 25332), (900, 21110), (1000, 18999), (1125, 16888), (1500, 12666), (1800, 10555), (2111, 9000), (2250, 8444), (3000, 6333), (4222, 4500)]