388481680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167449}}^1$

素因数の和:167491

約数の個数: 40

約数和(自身を含む): 934371000

約数和(自身を除く): 545889320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 167449, 334898, 669796, 837245, 1339592, 1674490, 2679184, 3348980, 4856021, 6697960, 9712042, 13395920, 19424084, 24280105, 38848168, 48560210, 77696336, 97120420, 194240840, 388481680]

約数ペア:

[(1, 388481680), (2, 194240840), (4, 97120420), (5, 77696336), (8, 48560210), (10, 38848168), (16, 24280105), (20, 19424084), (29, 13395920), (40, 9712042), (58, 6697960), (80, 4856021), (116, 3348980), (145, 2679184), (232, 1674490), (290, 1339592), (464, 837245), (580, 669796), (1160, 334898), (2320, 167449)]