19902400

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{1777}}^1$

素因数の和:1806

約数の個数: 84

約数和(自身を含む): 55999888

約数和(自身を除く): 36097488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 320, 350, 400, 448, 560, 700, 800, 1120, 1400, 1600, 1777, 2240, 2800, 3554, 5600, 7108, 8885, 11200, 12439, 14216, 17770, 24878, 28432, 35540, 44425, 49756, 56864, 62195, 71080, 88850, 99512, 113728, 124390, 142160, 177700, 199024, 248780, 284320, 310975, 355400, 398048, 497560, 568640, 621950, 710800, 796096, 995120, 1243900, 1421600, 1990240, 2487800, 2843200, 3980480, 4975600, 9951200, 19902400]

約数ペア:

[(1, 19902400), (2, 9951200), (4, 4975600), (5, 3980480), (7, 2843200), (8, 2487800), (10, 1990240), (14, 1421600), (16, 1243900), (20, 995120), (25, 796096), (28, 710800), (32, 621950), (35, 568640), (40, 497560), (50, 398048), (56, 355400), (64, 310975), (70, 284320), (80, 248780), (100, 199024), (112, 177700), (140, 142160), (160, 124390), (175, 113728), (200, 99512), (224, 88850), (280, 71080), (320, 62195), (350, 56864), (400, 49756), (448, 44425), (560, 35540), (700, 28432), (800, 24878), (1120, 17770), (1400, 14216), (1600, 12439), (1777, 11200), (2240, 8885), (2800, 7108), (3554, 5600)]