388987988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{359}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 734832000

約数和(自身を除く): 345844012

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 269, 359, 538, 718, 1007, 1076, 1436, 2014, 4028, 5111, 6821, 10222, 13642, 14257, 19027, 20444, 27284, 28514, 38054, 57028, 76108, 96571, 193142, 270883, 361513, 386284, 541766, 723026, 1083532, 1446052, 1834849, 3669698, 5118263, 7339396, 10236526, 20473052, 97246997, 194493994, 388987988]

約数ペア:

[(1, 388987988), (2, 194493994), (4, 97246997), (19, 20473052), (38, 10236526), (53, 7339396), (76, 5118263), (106, 3669698), (212, 1834849), (269, 1446052), (359, 1083532), (538, 723026), (718, 541766), (1007, 386284), (1076, 361513), (1436, 270883), (2014, 193142), (4028, 96571), (5111, 76108), (6821, 57028), (10222, 38054), (13642, 28514), (14257, 27284), (19027, 20444)]