12480020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 30293760

約数和(自身を除く): 17813740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 919, 970, 1358, 1838, 1940, 2716, 3395, 3676, 4595, 6433, 6790, 9190, 12866, 13580, 18380, 25732, 32165, 64330, 89143, 128660, 178286, 356572, 445715, 624001, 891430, 1248002, 1782860, 2496004, 3120005, 6240010, 12480020]

約数ペア:

[(1, 12480020), (2, 6240010), (4, 3120005), (5, 2496004), (7, 1782860), (10, 1248002), (14, 891430), (20, 624001), (28, 445715), (35, 356572), (70, 178286), (97, 128660), (140, 89143), (194, 64330), (388, 32165), (485, 25732), (679, 18380), (919, 13580), (970, 12866), (1358, 9190), (1838, 6790), (1940, 6433), (2716, 4595), (3395, 3676)]