13140260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1997}}^1$

素因数の和:2060

約数の個数: 48

約数和(自身を含む): 32223744

約数和(自身を除く): 19083484

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, 1997, 3290, 3994, 6580, 7988, 9985, 13979, 19970, 27958, 39940, 55916, 69895, 93859, 139790, 187718, 279580, 375436, 469295, 657013, 938590, 1314026, 1877180, 2628052, 3285065, 6570130, 13140260]

約数ペア:

[(1, 13140260), (2, 6570130), (4, 3285065), (5, 2628052), (7, 1877180), (10, 1314026), (14, 938590), (20, 657013), (28, 469295), (35, 375436), (47, 279580), (70, 187718), (94, 139790), (140, 93859), (188, 69895), (235, 55916), (329, 39940), (470, 27958), (658, 19970), (940, 13979), (1316, 9985), (1645, 7988), (1997, 6580), (3290, 3994)]