20987640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19433}}^1$

素因数の和:19453

約数の個数: 64

約数和(自身を含む): 69962400

約数和(自身を除く): 48974760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19433, 38866, 58299, 77732, 97165, 116598, 155464, 174897, 194330, 233196, 291495, 349794, 388660, 466392, 524691, 582990, 699588, 777320, 874485, 1049382, 1165980, 1399176, 1748970, 2098764, 2331960, 2623455, 3497940, 4197528, 5246910, 6995880, 10493820, 20987640]

約数ペア:

[(1, 20987640), (2, 10493820), (3, 6995880), (4, 5246910), (5, 4197528), (6, 3497940), (8, 2623455), (9, 2331960), (10, 2098764), (12, 1748970), (15, 1399176), (18, 1165980), (20, 1049382), (24, 874485), (27, 777320), (30, 699588), (36, 582990), (40, 524691), (45, 466392), (54, 388660), (60, 349794), (72, 291495), (90, 233196), (108, 194330), (120, 174897), (135, 155464), (180, 116598), (216, 97165), (270, 77732), (360, 58299), (540, 38866), (1080, 19433)]