199685402

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 380436480

約数和(自身を除く): 180751078

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 127, 133, 161, 254, 257, 266, 322, 437, 514, 874, 889, 1778, 1799, 2413, 2921, 3059, 3598, 4826, 4883, 5842, 5911, 6118, 9766, 11822, 16891, 20447, 32639, 33782, 34181, 40894, 41377, 55499, 65278, 68362, 82754, 110998, 112309, 224618, 228473, 388493, 456946, 620141, 750697, 776986, 786163, 1240282, 1501394, 1572326, 4340987, 5254879, 8681974, 10509758, 14263243, 28526486, 99842701, 199685402]

約数ペア:

[(1, 199685402), (2, 99842701), (7, 28526486), (14, 14263243), (19, 10509758), (23, 8681974), (38, 5254879), (46, 4340987), (127, 1572326), (133, 1501394), (161, 1240282), (254, 786163), (257, 776986), (266, 750697), (322, 620141), (437, 456946), (514, 388493), (874, 228473), (889, 224618), (1778, 112309), (1799, 110998), (2413, 82754), (2921, 68362), (3059, 65278), (3598, 55499), (4826, 41377), (4883, 40894), (5842, 34181), (5911, 33782), (6118, 32639), (9766, 20447), (11822, 16891)]