128805660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{238529}}^1$

素因数の和:238547

約数の個数: 48

約数和(自身を含む): 400730400

約数和(自身を除く): 271924740

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, 238529, 477058, 715587, 954116, 1192645, 1431174, 2146761, 2385290, 2862348, 3577935, 4293522, 4770580, 6440283, 7155870, 8587044, 10733805, 12880566, 14311740, 21467610, 25761132, 32201415, 42935220, 64402830, 128805660]

約数ペア:

[(1, 128805660), (2, 64402830), (3, 42935220), (4, 32201415), (5, 25761132), (6, 21467610), (9, 14311740), (10, 12880566), (12, 10733805), (15, 8587044), (18, 7155870), (20, 6440283), (27, 4770580), (30, 4293522), (36, 3577935), (45, 2862348), (54, 2385290), (60, 2146761), (90, 1431174), (108, 1192645), (135, 954116), (180, 715587), (270, 477058), (540, 238529)]