256603985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1861}}^1$

素因数の和:2009

約数の個数: 32

約数和(自身を含む): 353928960

約数和(自身を除く): 97324975

約数列:

[1, 5, 11, 23, 55, 109, 115, 253, 545, 1199, 1265, 1861, 2507, 5995, 9305, 12535, 20471, 27577, 42803, 102355, 137885, 202849, 214015, 470833, 1014245, 2231339, 2354165, 4665527, 11156695, 23327635, 51320797, 256603985]

約数ペア:

[(1, 256603985), (5, 51320797), (11, 23327635), (23, 11156695), (55, 4665527), (109, 2354165), (115, 2231339), (253, 1014245), (545, 470833), (1199, 214015), (1265, 202849), (1861, 137885), (2507, 102355), (5995, 42803), (9305, 27577), (12535, 20471)]