20369800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 53032320

約数和(自身を除く): 32662520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 47, 50, 55, 88, 94, 100, 110, 188, 197, 200, 220, 235, 275, 376, 394, 440, 470, 517, 550, 788, 940, 985, 1034, 1100, 1175, 1576, 1880, 1970, 2068, 2167, 2200, 2350, 2585, 3940, 4136, 4334, 4700, 4925, 5170, 7880, 8668, 9259, 9400, 9850, 10340, 10835, 12925, 17336, 18518, 19700, 20680, 21670, 25850, 37036, 39400, 43340, 46295, 51700, 54175, 74072, 86680, 92590, 101849, 103400, 108350, 185180, 203698, 216700, 231475, 370360, 407396, 433400, 462950, 509245, 814792, 925900, 1018490, 1851800, 2036980, 2546225, 4073960, 5092450, 10184900, 20369800]

約数ペア:

[(1, 20369800), (2, 10184900), (4, 5092450), (5, 4073960), (8, 2546225), (10, 2036980), (11, 1851800), (20, 1018490), (22, 925900), (25, 814792), (40, 509245), (44, 462950), (47, 433400), (50, 407396), (55, 370360), (88, 231475), (94, 216700), (100, 203698), (110, 185180), (188, 108350), (197, 103400), (200, 101849), (220, 92590), (235, 86680), (275, 74072), (376, 54175), (394, 51700), (440, 46295), (470, 43340), (517, 39400), (550, 37036), (788, 25850), (940, 21670), (985, 20680), (1034, 19700), (1100, 18518), (1175, 17336), (1576, 12925), (1880, 10835), (1970, 10340), (2068, 9850), (2167, 9400), (2200, 9259), (2350, 8668), (2585, 7880), (3940, 5170), (4136, 4925), (4334, 4700)]