28070042

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2003}}^1$

素因数の和:2043

約数の個数: 48

約数和(自身を含む): 57570912

約数和(自身を除く): 29500870

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 286, 539, 637, 1001, 1078, 1274, 2002, 2003, 4006, 7007, 14014, 14021, 22033, 26039, 28042, 44066, 52078, 98147, 154231, 182273, 196294, 286429, 308462, 364546, 572858, 1079617, 1275911, 2005003, 2159234, 2551822, 4010006, 14035021, 28070042]

約数ペア:

[(1, 28070042), (2, 14035021), (7, 4010006), (11, 2551822), (13, 2159234), (14, 2005003), (22, 1275911), (26, 1079617), (49, 572858), (77, 364546), (91, 308462), (98, 286429), (143, 196294), (154, 182273), (182, 154231), (286, 98147), (539, 52078), (637, 44066), (1001, 28042), (1078, 26039), (1274, 22033), (2002, 14021), (2003, 14014), (4006, 7007)]