15666980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2381}}^1$

素因数の和:2444

約数の個数: 48

約数和(自身を含む): 38416896

約数和(自身を除く): 22749916

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, 2381, 3290, 4762, 6580, 9524, 11905, 16667, 23810, 33334, 47620, 66668, 83335, 111907, 166670, 223814, 333340, 447628, 559535, 783349, 1119070, 1566698, 2238140, 3133396, 3916745, 7833490, 15666980]

約数ペア:

[(1, 15666980), (2, 7833490), (4, 3916745), (5, 3133396), (7, 2238140), (10, 1566698), (14, 1119070), (20, 783349), (28, 559535), (35, 447628), (47, 333340), (70, 223814), (94, 166670), (140, 111907), (188, 83335), (235, 66668), (329, 47620), (470, 33334), (658, 23810), (940, 16667), (1316, 11905), (1645, 9524), (2381, 6580), (3290, 4762)]