20585940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11831}}^1$

素因数の和:11872

約数の個数: 48

約数和(自身を含む): 59633280

約数和(自身を除く): 39047340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11831, 23662, 35493, 47324, 59155, 70986, 118310, 141972, 177465, 236620, 343099, 354930, 686198, 709860, 1029297, 1372396, 1715495, 2058594, 3430990, 4117188, 5146485, 6861980, 10292970, 20585940]

約数ペア:

[(1, 20585940), (2, 10292970), (3, 6861980), (4, 5146485), (5, 4117188), (6, 3430990), (10, 2058594), (12, 1715495), (15, 1372396), (20, 1029297), (29, 709860), (30, 686198), (58, 354930), (60, 343099), (87, 236620), (116, 177465), (145, 141972), (174, 118310), (290, 70986), (348, 59155), (435, 47324), (580, 35493), (870, 23662), (1740, 11831)]