55441980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28001}}^1$

素因数の和:28027

約数の個数: 72

約数和(自身を含む): 183469104

約数和(自身を除く): 128027124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 28001, 56002, 84003, 112004, 140005, 168006, 252009, 280010, 308011, 336012, 420015, 504018, 560020, 616022, 840030, 924033, 1008036, 1232044, 1260045, 1540055, 1680060, 1848066, 2520090, 2772099, 3080110, 3696132, 4620165, 5040180, 5544198, 6160220, 9240330, 11088396, 13860495, 18480660, 27720990, 55441980]

約数ペア:

[(1, 55441980), (2, 27720990), (3, 18480660), (4, 13860495), (5, 11088396), (6, 9240330), (9, 6160220), (10, 5544198), (11, 5040180), (12, 4620165), (15, 3696132), (18, 3080110), (20, 2772099), (22, 2520090), (30, 1848066), (33, 1680060), (36, 1540055), (44, 1260045), (45, 1232044), (55, 1008036), (60, 924033), (66, 840030), (90, 616022), (99, 560020), (110, 504018), (132, 420015), (165, 336012), (180, 308011), (198, 280010), (220, 252009), (330, 168006), (396, 140005), (495, 112004), (660, 84003), (990, 56002), (1980, 28001)]