19990512

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{4787}}^1$

素因数の和:4830

約数の個数: 60

約数和(自身を含む): 57886920

約数和(自身を除く): 37896408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 48, 58, 72, 87, 116, 144, 174, 232, 261, 348, 464, 522, 696, 1044, 1392, 2088, 4176, 4787, 9574, 14361, 19148, 28722, 38296, 43083, 57444, 76592, 86166, 114888, 138823, 172332, 229776, 277646, 344664, 416469, 555292, 689328, 832938, 1110584, 1249407, 1665876, 2221168, 2498814, 3331752, 4997628, 6663504, 9995256, 19990512]

約数ペア:

[(1, 19990512), (2, 9995256), (3, 6663504), (4, 4997628), (6, 3331752), (8, 2498814), (9, 2221168), (12, 1665876), (16, 1249407), (18, 1110584), (24, 832938), (29, 689328), (36, 555292), (48, 416469), (58, 344664), (72, 277646), (87, 229776), (116, 172332), (144, 138823), (174, 114888), (232, 86166), (261, 76592), (348, 57444), (464, 43083), (522, 38296), (696, 28722), (1044, 19148), (1392, 14361), (2088, 9574), (4176, 4787)]