12717920

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 30382128

約数和(自身を除く): 17664208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 787, 808, 1010, 1574, 1616, 2020, 3148, 3232, 3935, 4040, 6296, 7870, 8080, 12592, 15740, 16160, 25184, 31480, 62960, 79487, 125920, 158974, 317948, 397435, 635896, 794870, 1271792, 1589740, 2543584, 3179480, 6358960, 12717920]

約数ペア:

[(1, 12717920), (2, 6358960), (4, 3179480), (5, 2543584), (8, 1589740), (10, 1271792), (16, 794870), (20, 635896), (32, 397435), (40, 317948), (80, 158974), (101, 125920), (160, 79487), (202, 62960), (404, 31480), (505, 25184), (787, 16160), (808, 15740), (1010, 12592), (1574, 8080), (1616, 7870), (2020, 6296), (3148, 4040), (3232, 3935)]