208040847

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 341397504

約数和(自身を除く): 133356657

約数列:

[1, 3, 7, 21, 41, 47, 53, 97, 123, 141, 159, 287, 291, 329, 371, 679, 861, 987, 1113, 1927, 2037, 2173, 2491, 3977, 4559, 5141, 5781, 6519, 7473, 11931, 13489, 13677, 15211, 15423, 17437, 27839, 31913, 35987, 40467, 45633, 52311, 83517, 95739, 102131, 107961, 186919, 210781, 241627, 306393, 560757, 632343, 714917, 724881, 1308433, 1475467, 1691389, 2144751, 3925299, 4426401, 5074167, 9906707, 29720121, 69346949, 208040847]

約数ペア:

[(1, 208040847), (3, 69346949), (7, 29720121), (21, 9906707), (41, 5074167), (47, 4426401), (53, 3925299), (97, 2144751), (123, 1691389), (141, 1475467), (159, 1308433), (287, 724881), (291, 714917), (329, 632343), (371, 560757), (679, 306393), (861, 241627), (987, 210781), (1113, 186919), (1927, 107961), (2037, 102131), (2173, 95739), (2491, 83517), (3977, 52311), (4559, 45633), (5141, 40467), (5781, 35987), (6519, 31913), (7473, 27839), (11931, 17437), (13489, 15423), (13677, 15211)]