42542000

素因数分解:

$2^4\times 5^3\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:351

約数の個数: 80

約数和(自身を含む): 104457600

約数和(自身を除く): 61915600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 125, 178, 200, 239, 250, 356, 400, 445, 478, 500, 712, 890, 956, 1000, 1195, 1424, 1780, 1912, 2000, 2225, 2390, 3560, 3824, 4450, 4780, 5975, 7120, 8900, 9560, 11125, 11950, 17800, 19120, 21271, 22250, 23900, 29875, 35600, 42542, 44500, 47800, 59750, 85084, 89000, 95600, 106355, 119500, 170168, 178000, 212710, 239000, 340336, 425420, 478000, 531775, 850840, 1063550, 1701680, 2127100, 2658875, 4254200, 5317750, 8508400, 10635500, 21271000, 42542000]

約数ペア:

[(1, 42542000), (2, 21271000), (4, 10635500), (5, 8508400), (8, 5317750), (10, 4254200), (16, 2658875), (20, 2127100), (25, 1701680), (40, 1063550), (50, 850840), (80, 531775), (89, 478000), (100, 425420), (125, 340336), (178, 239000), (200, 212710), (239, 178000), (250, 170168), (356, 119500), (400, 106355), (445, 95600), (478, 89000), (500, 85084), (712, 59750), (890, 47800), (956, 44500), (1000, 42542), (1195, 35600), (1424, 29875), (1780, 23900), (1912, 22250), (2000, 21271), (2225, 19120), (2390, 17800), (3560, 11950), (3824, 11125), (4450, 9560), (4780, 8900), (5975, 7120)]