18430580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2801}}^1$

素因数の和:2864

約数の個数: 48

約数和(自身を含む): 45190656

約数和(自身を除く): 26760076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2801, 3290, 5602, 6580, 11204, 14005, 19607, 28010, 39214, 56020, 78428, 98035, 131647, 196070, 263294, 392140, 526588, 658235, 921529, 1316470, 1843058, 2632940, 3686116, 4607645, 9215290, 18430580]

約数ペア:

[(1, 18430580), (2, 9215290), (4, 4607645), (5, 3686116), (7, 2632940), (10, 1843058), (14, 1316470), (20, 921529), (28, 658235), (35, 526588), (47, 392140), (70, 263294), (94, 196070), (140, 131647), (188, 98035), (235, 78428), (329, 56020), (470, 39214), (658, 28010), (940, 19607), (1316, 14005), (1645, 11204), (2801, 6580), (3290, 5602)]