208519157

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 275788800

約数和(自身を除く): 67269643

約数列:

[1, 7, 11, 49, 59, 77, 79, 83, 413, 539, 553, 581, 649, 869, 913, 2891, 3871, 4067, 4543, 4661, 4897, 6083, 6391, 6557, 31801, 32627, 34279, 42581, 44737, 45899, 51271, 53867, 72127, 228389, 239953, 321293, 358897, 377069, 386863, 504889, 2512279, 2639483, 2708041, 3534223, 4255493, 18956287, 29788451, 208519157]

約数ペア:

[(1, 208519157), (7, 29788451), (11, 18956287), (49, 4255493), (59, 3534223), (77, 2708041), (79, 2639483), (83, 2512279), (413, 504889), (539, 386863), (553, 377069), (581, 358897), (649, 321293), (869, 239953), (913, 228389), (2891, 72127), (3871, 53867), (4067, 51271), (4543, 45899), (4661, 44737), (4897, 42581), (6083, 34279), (6391, 32627), (6557, 31801)]