208409220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{385943}}^1$

素因数の和:385961

約数の個数: 48

約数和(自身を含む): 648385920

約数和(自身を除く): 439976700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 385943, 771886, 1157829, 1543772, 1929715, 2315658, 3473487, 3859430, 4631316, 5789145, 6946974, 7718860, 10420461, 11578290, 13893948, 17367435, 20840922, 23156580, 34734870, 41681844, 52102305, 69469740, 104204610, 208409220]

約数ペア:

[(1, 208409220), (2, 104204610), (3, 69469740), (4, 52102305), (5, 41681844), (6, 34734870), (9, 23156580), (10, 20840922), (12, 17367435), (15, 13893948), (18, 11578290), (20, 10420461), (27, 7718860), (30, 6946974), (36, 5789145), (45, 4631316), (54, 3859430), (60, 3473487), (90, 2315658), (108, 1929715), (135, 1543772), (180, 1157829), (270, 771886), (540, 385943)]