19691120

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5237}}^1$

素因数の和:5297

約数の個数: 40

約数和(自身を含む): 46764864

約数和(自身を除く): 27073744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5237, 10474, 20948, 26185, 41896, 52370, 83792, 104740, 209480, 246139, 418960, 492278, 984556, 1230695, 1969112, 2461390, 3938224, 4922780, 9845560, 19691120]

約数ペア:

[(1, 19691120), (2, 9845560), (4, 4922780), (5, 3938224), (8, 2461390), (10, 1969112), (16, 1230695), (20, 984556), (40, 492278), (47, 418960), (80, 246139), (94, 209480), (188, 104740), (235, 83792), (376, 52370), (470, 41896), (752, 26185), (940, 20948), (1880, 10474), (3760, 5237)]