19987600

素因数分解:

$2^4\times 5^2\times {\mathrm{107}}^1\times {\mathrm{467}}^1$

素因数の和:592

約数の個数: 60

約数和(自身を含む): 48572784

約数和(自身を除く): 28585184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 107, 200, 214, 400, 428, 467, 535, 856, 934, 1070, 1712, 1868, 2140, 2335, 2675, 3736, 4280, 4670, 5350, 7472, 8560, 9340, 10700, 11675, 18680, 21400, 23350, 37360, 42800, 46700, 49969, 93400, 99938, 186800, 199876, 249845, 399752, 499690, 799504, 999380, 1249225, 1998760, 2498450, 3997520, 4996900, 9993800, 19987600]

約数ペア:

[(1, 19987600), (2, 9993800), (4, 4996900), (5, 3997520), (8, 2498450), (10, 1998760), (16, 1249225), (20, 999380), (25, 799504), (40, 499690), (50, 399752), (80, 249845), (100, 199876), (107, 186800), (200, 99938), (214, 93400), (400, 49969), (428, 46700), (467, 42800), (535, 37360), (856, 23350), (934, 21400), (1070, 18680), (1712, 11675), (1868, 10700), (2140, 9340), (2335, 8560), (2675, 7472), (3736, 5350), (4280, 4670)]