2018201800

素因数分解:

$2^3\times 5^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1235

約数の個数: 96

約数和(自身を含む): 4796065800

約数和(自身を除く): 2777864000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 137, 146, 200, 274, 292, 365, 548, 584, 685, 730, 1009, 1096, 1370, 1460, 1825, 2018, 2740, 2920, 3425, 3650, 4036, 5045, 5480, 6850, 7300, 8072, 10001, 10090, 13700, 14600, 20002, 20180, 25225, 27400, 40004, 40360, 50005, 50450, 73657, 80008, 100010, 100900, 138233, 147314, 200020, 201800, 250025, 276466, 294628, 368285, 400040, 500050, 552932, 589256, 691165, 736570, 1000100, 1105864, 1382330, 1473140, 1841425, 2000200, 2764660, 2946280, 3455825, 3682850, 5529320, 6911650, 7365700, 10091009, 13823300, 14731400, 20182018, 27646600, 40364036, 50455045, 80728072, 100910090, 201820180, 252275225, 403640360, 504550450, 1009100900, 2018201800]

約数ペア:

[(1, 2018201800), (2, 1009100900), (4, 504550450), (5, 403640360), (8, 252275225), (10, 201820180), (20, 100910090), (25, 80728072), (40, 50455045), (50, 40364036), (73, 27646600), (100, 20182018), (137, 14731400), (146, 13823300), (200, 10091009), (274, 7365700), (292, 6911650), (365, 5529320), (548, 3682850), (584, 3455825), (685, 2946280), (730, 2764660), (1009, 2000200), (1096, 1841425), (1370, 1473140), (1460, 1382330), (1825, 1105864), (2018, 1000100), (2740, 736570), (2920, 691165), (3425, 589256), (3650, 552932), (4036, 500050), (5045, 400040), (5480, 368285), (6850, 294628), (7300, 276466), (8072, 250025), (10001, 201800), (10090, 200020), (13700, 147314), (14600, 138233), (20002, 100900), (20180, 100010), (25225, 80008), (27400, 73657), (40004, 50450), (40360, 50005)]