131279220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{729329}}^1$

素因数の和:729344

約数の個数: 36

約数和(自身を含む): 398214180

約数和(自身を除く): 266934960

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 729329, 1458658, 2187987, 2917316, 3646645, 4375974, 6563961, 7293290, 8751948, 10939935, 13127922, 14586580, 21879870, 26255844, 32819805, 43759740, 65639610, 131279220]

約数ペア:

[(1, 131279220), (2, 65639610), (3, 43759740), (4, 32819805), (5, 26255844), (6, 21879870), (9, 14586580), (10, 13127922), (12, 10939935), (15, 8751948), (18, 7293290), (20, 6563961), (30, 4375974), (36, 3646645), (45, 2917316), (60, 2187987), (90, 1458658), (180, 729329)]