19441504

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 20475296

約数列:

[1, 2, 4, 8, 16, 32, 43, 71, 86, 142, 172, 199, 284, 344, 398, 568, 688, 796, 1136, 1376, 1592, 2272, 3053, 3184, 6106, 6368, 8557, 12212, 14129, 17114, 24424, 28258, 34228, 48848, 56516, 68456, 97696, 113032, 136912, 226064, 273824, 452128, 607547, 1215094, 2430188, 4860376, 9720752, 19441504]

約数ペア:

[(1, 19441504), (2, 9720752), (4, 4860376), (8, 2430188), (16, 1215094), (32, 607547), (43, 452128), (71, 273824), (86, 226064), (142, 136912), (172, 113032), (199, 97696), (284, 68456), (344, 56516), (398, 48848), (568, 34228), (688, 28258), (796, 24424), (1136, 17114), (1376, 14129), (1592, 12212), (2272, 8557), (3053, 6368), (3184, 6106)]