890994293

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 1118069568

約数和(自身を除く): 227075275

約数列:

[1, 7, 17, 49, 83, 119, 263, 343, 581, 833, 1411, 1841, 2401, 4067, 4471, 5831, 9877, 12887, 21829, 28469, 31297, 40817, 69139, 90209, 152803, 199283, 219079, 371093, 483973, 631463, 1069621, 1533553, 2597651, 3387811, 7487347, 10734871, 18183557, 52411429, 127284899, 890994293]

約数ペア:

[(1, 890994293), (7, 127284899), (17, 52411429), (49, 18183557), (83, 10734871), (119, 7487347), (263, 3387811), (343, 2597651), (581, 1533553), (833, 1069621), (1411, 631463), (1841, 483973), (2401, 371093), (4067, 219079), (4471, 199283), (5831, 152803), (9877, 90209), (12887, 69139), (21829, 40817), (28469, 31297)]