18581920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:422

約数の個数: 96

約数和(自身を含む): 51383808

約数和(自身を除く): 32801888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 70, 80, 94, 112, 140, 160, 188, 224, 235, 280, 329, 353, 376, 470, 560, 658, 706, 752, 940, 1120, 1316, 1412, 1504, 1645, 1765, 1880, 2471, 2632, 2824, 3290, 3530, 3760, 4942, 5264, 5648, 6580, 7060, 7520, 9884, 10528, 11296, 12355, 13160, 14120, 16591, 19768, 24710, 26320, 28240, 33182, 39536, 49420, 52640, 56480, 66364, 79072, 82955, 98840, 116137, 132728, 165910, 197680, 232274, 265456, 331820, 395360, 464548, 530912, 580685, 663640, 929096, 1161370, 1327280, 1858192, 2322740, 2654560, 3716384, 4645480, 9290960, 18581920]

約数ペア:

[(1, 18581920), (2, 9290960), (4, 4645480), (5, 3716384), (7, 2654560), (8, 2322740), (10, 1858192), (14, 1327280), (16, 1161370), (20, 929096), (28, 663640), (32, 580685), (35, 530912), (40, 464548), (47, 395360), (56, 331820), (70, 265456), (80, 232274), (94, 197680), (112, 165910), (140, 132728), (160, 116137), (188, 98840), (224, 82955), (235, 79072), (280, 66364), (329, 56480), (353, 52640), (376, 49420), (470, 39536), (560, 33182), (658, 28240), (706, 26320), (752, 24710), (940, 19768), (1120, 16591), (1316, 14120), (1412, 13160), (1504, 12355), (1645, 11296), (1765, 10528), (1880, 9884), (2471, 7520), (2632, 7060), (2824, 6580), (3290, 5648), (3530, 5264), (3760, 4942)]