198964976

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 452352000

約数和(自身を除く): 253387024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 113, 158, 199, 226, 316, 398, 452, 553, 632, 791, 796, 904, 1106, 1264, 1393, 1582, 1592, 1808, 2212, 2786, 3164, 3184, 4424, 5572, 6328, 8848, 8927, 11144, 12656, 15721, 17854, 22288, 22487, 31442, 35708, 44974, 62489, 62884, 71416, 89948, 110047, 124978, 125768, 142832, 157409, 179896, 220094, 249956, 251536, 314818, 359792, 440188, 499912, 629636, 880376, 999824, 1259272, 1760752, 1776473, 2518544, 3552946, 7105892, 12435311, 14211784, 24870622, 28423568, 49741244, 99482488, 198964976]

約数ペア:

[(1, 198964976), (2, 99482488), (4, 49741244), (7, 28423568), (8, 24870622), (14, 14211784), (16, 12435311), (28, 7105892), (56, 3552946), (79, 2518544), (112, 1776473), (113, 1760752), (158, 1259272), (199, 999824), (226, 880376), (316, 629636), (398, 499912), (452, 440188), (553, 359792), (632, 314818), (791, 251536), (796, 249956), (904, 220094), (1106, 179896), (1264, 157409), (1393, 142832), (1582, 125768), (1592, 124978), (1808, 110047), (2212, 89948), (2786, 71416), (3164, 62884), (3184, 62489), (4424, 44974), (5572, 35708), (6328, 31442), (8848, 22487), (8927, 22288), (11144, 17854), (12656, 15721)]