20943200

素因数分解:

$2^5\times 5^2\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:624

約数の個数: 72

約数和(自身を含む): 52309152

約数和(自身を除く): 31365952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 80, 94, 100, 160, 188, 200, 235, 376, 400, 470, 557, 752, 800, 940, 1114, 1175, 1504, 1880, 2228, 2350, 2785, 3760, 4456, 4700, 5570, 7520, 8912, 9400, 11140, 13925, 17824, 18800, 22280, 26179, 27850, 37600, 44560, 52358, 55700, 89120, 104716, 111400, 130895, 209432, 222800, 261790, 418864, 445600, 523580, 654475, 837728, 1047160, 1308950, 2094320, 2617900, 4188640, 5235800, 10471600, 20943200]

約数ペア:

[(1, 20943200), (2, 10471600), (4, 5235800), (5, 4188640), (8, 2617900), (10, 2094320), (16, 1308950), (20, 1047160), (25, 837728), (32, 654475), (40, 523580), (47, 445600), (50, 418864), (80, 261790), (94, 222800), (100, 209432), (160, 130895), (188, 111400), (200, 104716), (235, 89120), (376, 55700), (400, 52358), (470, 44560), (557, 37600), (752, 27850), (800, 26179), (940, 22280), (1114, 18800), (1175, 17824), (1504, 13925), (1880, 11140), (2228, 9400), (2350, 8912), (2785, 7520), (3760, 5570), (4456, 4700)]