18858280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1433}}^1$

素因数の和:1498

約数の個数: 64

約数和(自身を含む): 49559040

約数和(自身を除く): 30700760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1433, 1645, 1880, 2632, 2866, 3290, 5732, 6580, 7165, 10031, 11464, 13160, 14330, 20062, 28660, 40124, 50155, 57320, 67351, 80248, 100310, 134702, 200620, 269404, 336755, 401240, 471457, 538808, 673510, 942914, 1347020, 1885828, 2357285, 2694040, 3771656, 4714570, 9429140, 18858280]

約数ペア:

[(1, 18858280), (2, 9429140), (4, 4714570), (5, 3771656), (7, 2694040), (8, 2357285), (10, 1885828), (14, 1347020), (20, 942914), (28, 673510), (35, 538808), (40, 471457), (47, 401240), (56, 336755), (70, 269404), (94, 200620), (140, 134702), (188, 100310), (235, 80248), (280, 67351), (329, 57320), (376, 50155), (470, 40124), (658, 28660), (940, 20062), (1316, 14330), (1433, 13160), (1645, 11464), (1880, 10031), (2632, 7165), (2866, 6580), (3290, 5732)]