218962980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{405487}}^1$

素因数の和:405505

約数の個数: 48

約数和(自身を含む): 681219840

約数和(自身を除く): 462256860

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, 405487, 810974, 1216461, 1621948, 2027435, 2432922, 3649383, 4054870, 4865844, 6082305, 7298766, 8109740, 10948149, 12164610, 14597532, 18246915, 21896298, 24329220, 36493830, 43792596, 54740745, 72987660, 109481490, 218962980]

約数ペア:

[(1, 218962980), (2, 109481490), (3, 72987660), (4, 54740745), (5, 43792596), (6, 36493830), (9, 24329220), (10, 21896298), (12, 18246915), (15, 14597532), (18, 12164610), (20, 10948149), (27, 8109740), (30, 7298766), (36, 6082305), (45, 4865844), (54, 4054870), (60, 3649383), (90, 2432922), (108, 2027435), (135, 1621948), (180, 1216461), (270, 810974), (540, 405487)]