278121795

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 540546048

約数和(自身を除く): 262424253

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 83, 97, 105, 141, 147, 235, 245, 249, 291, 329, 415, 485, 581, 679, 705, 735, 987, 1245, 1455, 1645, 1743, 2037, 2303, 2905, 3395, 3901, 4067, 4559, 4753, 4935, 6909, 8051, 8715, 10185, 11515, 11703, 12201, 13677, 14259, 19505, 20335, 22795, 23765, 24153, 27307, 31913, 34545, 40255, 56357, 58515, 61005, 68385, 71295, 81921, 95739, 120765, 136535, 159565, 169071, 191149, 223391, 281785, 378397, 394499, 409605, 478695, 573447, 670173, 845355, 955745, 1116955, 1135191, 1183497, 1891985, 1972495, 2648779, 2867235, 3350865, 5675955, 5917485, 7946337, 13243895, 18541453, 39731685, 55624359, 92707265, 278121795]

約数ペア:

[(1, 278121795), (3, 92707265), (5, 55624359), (7, 39731685), (15, 18541453), (21, 13243895), (35, 7946337), (47, 5917485), (49, 5675955), (83, 3350865), (97, 2867235), (105, 2648779), (141, 1972495), (147, 1891985), (235, 1183497), (245, 1135191), (249, 1116955), (291, 955745), (329, 845355), (415, 670173), (485, 573447), (581, 478695), (679, 409605), (705, 394499), (735, 378397), (987, 281785), (1245, 223391), (1455, 191149), (1645, 169071), (1743, 159565), (2037, 136535), (2303, 120765), (2905, 95739), (3395, 81921), (3901, 71295), (4067, 68385), (4559, 61005), (4753, 58515), (4935, 56357), (6909, 40255), (8051, 34545), (8715, 31913), (10185, 27307), (11515, 24153), (11703, 23765), (12201, 22795), (13677, 20335), (14259, 19505)]