19801200

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{569}}^1$

素因数の和:619

約数の個数: 120

約数和(自身を含む): 65732400

約数和(自身を除く): 45931200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 29, 30, 40, 48, 50, 58, 60, 75, 80, 87, 100, 116, 120, 145, 150, 174, 200, 232, 240, 290, 300, 348, 400, 435, 464, 569, 580, 600, 696, 725, 870, 1138, 1160, 1200, 1392, 1450, 1707, 1740, 2175, 2276, 2320, 2845, 2900, 3414, 3480, 4350, 4552, 5690, 5800, 6828, 6960, 8535, 8700, 9104, 11380, 11600, 13656, 14225, 16501, 17070, 17400, 22760, 27312, 28450, 33002, 34140, 34800, 42675, 45520, 49503, 56900, 66004, 68280, 82505, 85350, 99006, 113800, 132008, 136560, 165010, 170700, 198012, 227600, 247515, 264016, 330020, 341400, 396024, 412525, 495030, 660040, 682800, 792048, 825050, 990060, 1237575, 1320080, 1650100, 1980120, 2475150, 3300200, 3960240, 4950300, 6600400, 9900600, 19801200]

約数ペア:

[(1, 19801200), (2, 9900600), (3, 6600400), (4, 4950300), (5, 3960240), (6, 3300200), (8, 2475150), (10, 1980120), (12, 1650100), (15, 1320080), (16, 1237575), (20, 990060), (24, 825050), (25, 792048), (29, 682800), (30, 660040), (40, 495030), (48, 412525), (50, 396024), (58, 341400), (60, 330020), (75, 264016), (80, 247515), (87, 227600), (100, 198012), (116, 170700), (120, 165010), (145, 136560), (150, 132008), (174, 113800), (200, 99006), (232, 85350), (240, 82505), (290, 68280), (300, 66004), (348, 56900), (400, 49503), (435, 45520), (464, 42675), (569, 34800), (580, 34140), (600, 33002), (696, 28450), (725, 27312), (870, 22760), (1138, 17400), (1160, 17070), (1200, 16501), (1392, 14225), (1450, 13656), (1707, 11600), (1740, 11380), (2175, 9104), (2276, 8700), (2320, 8535), (2845, 6960), (2900, 6828), (3414, 5800), (3480, 5690), (4350, 4552)]