19904896

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 44112960

約数和(自身を除く): 24208064

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 67, 88, 128, 134, 176, 211, 268, 352, 422, 536, 704, 737, 844, 1072, 1408, 1474, 1688, 2144, 2321, 2948, 3376, 4288, 4642, 5896, 6752, 8576, 9284, 11792, 13504, 14137, 18568, 23584, 27008, 28274, 37136, 47168, 56548, 74272, 94336, 113096, 148544, 155507, 226192, 297088, 311014, 452384, 622028, 904768, 1244056, 1809536, 2488112, 4976224, 9952448, 19904896]

約数ペア:

[(1, 19904896), (2, 9952448), (4, 4976224), (8, 2488112), (11, 1809536), (16, 1244056), (22, 904768), (32, 622028), (44, 452384), (64, 311014), (67, 297088), (88, 226192), (128, 155507), (134, 148544), (176, 113096), (211, 94336), (268, 74272), (352, 56548), (422, 47168), (536, 37136), (704, 28274), (737, 27008), (844, 23584), (1072, 18568), (1408, 14137), (1474, 13504), (1688, 11792), (2144, 9284), (2321, 8576), (2948, 6752), (3376, 5896), (4288, 4642)]