19946800

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1126

約数の個数: 60

約数和(自身を含む): 48987936

約数和(自身を除く): 29041136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1061, 1175, 1880, 2122, 2350, 3760, 4244, 4700, 5305, 8488, 9400, 10610, 16976, 18800, 21220, 26525, 42440, 49867, 53050, 84880, 99734, 106100, 199468, 212200, 249335, 398936, 424400, 498670, 797872, 997340, 1246675, 1994680, 2493350, 3989360, 4986700, 9973400, 19946800]

約数ペア:

[(1, 19946800), (2, 9973400), (4, 4986700), (5, 3989360), (8, 2493350), (10, 1994680), (16, 1246675), (20, 997340), (25, 797872), (40, 498670), (47, 424400), (50, 398936), (80, 249335), (94, 212200), (100, 199468), (188, 106100), (200, 99734), (235, 84880), (376, 53050), (400, 49867), (470, 42440), (752, 26525), (940, 21220), (1061, 18800), (1175, 16976), (1880, 10610), (2122, 9400), (2350, 8488), (3760, 5305), (4244, 4700)]