199906785

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{883}}^1$

素因数の和:956

約数の個数: 80

約数和(自身を含む): 395338944

約数和(自身を除く): 195432159

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 43, 45, 65, 81, 117, 129, 135, 195, 215, 351, 387, 405, 559, 585, 645, 883, 1053, 1161, 1677, 1755, 1935, 2649, 2795, 3483, 4415, 5031, 5265, 5805, 7947, 8385, 11479, 13245, 15093, 17415, 23841, 25155, 34437, 37969, 39735, 45279, 57395, 71523, 75465, 103311, 113907, 119205, 172185, 189845, 226395, 309933, 341721, 357615, 493597, 516555, 569535, 929799, 1025163, 1480791, 1549665, 1708605, 2467985, 3075489, 4442373, 4648995, 5125815, 7403955, 13327119, 15377445, 22211865, 39981357, 66635595, 199906785]

約数ペア:

[(1, 199906785), (3, 66635595), (5, 39981357), (9, 22211865), (13, 15377445), (15, 13327119), (27, 7403955), (39, 5125815), (43, 4648995), (45, 4442373), (65, 3075489), (81, 2467985), (117, 1708605), (129, 1549665), (135, 1480791), (195, 1025163), (215, 929799), (351, 569535), (387, 516555), (405, 493597), (559, 357615), (585, 341721), (645, 309933), (883, 226395), (1053, 189845), (1161, 172185), (1677, 119205), (1755, 113907), (1935, 103311), (2649, 75465), (2795, 71523), (3483, 57395), (4415, 45279), (5031, 39735), (5265, 37969), (5805, 34437), (7947, 25155), (8385, 23841), (11479, 17415), (13245, 15093)]