393945145

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 560387520

約数和(自身を除く): 166442375

約数列:

[1, 5, 11, 19, 43, 55, 95, 121, 209, 215, 473, 605, 797, 817, 1045, 2299, 2365, 3985, 4085, 5203, 8767, 8987, 11495, 15143, 26015, 34271, 43835, 44935, 75715, 96437, 98857, 166573, 171355, 376981, 482185, 494285, 651149, 832865, 1832303, 1884905, 3255745, 4146791, 7162639, 9161515, 20733955, 35813195, 78789029, 393945145]

約数ペア:

[(1, 393945145), (5, 78789029), (11, 35813195), (19, 20733955), (43, 9161515), (55, 7162639), (95, 4146791), (121, 3255745), (209, 1884905), (215, 1832303), (473, 832865), (605, 651149), (797, 494285), (817, 482185), (1045, 376981), (2299, 171355), (2365, 166573), (3985, 98857), (4085, 96437), (5203, 75715), (8767, 44935), (8987, 43835), (11495, 34271), (15143, 26015)]