16704640

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:669

約数の個数: 64

約数和(自身を含む): 40930560

約数和(自身を除く): 24225920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 607, 640, 688, 860, 1214, 1376, 1720, 2428, 2752, 3035, 3440, 4856, 5504, 6070, 6880, 9712, 12140, 13760, 19424, 24280, 26101, 27520, 38848, 48560, 52202, 77696, 97120, 104404, 130505, 194240, 208808, 261010, 388480, 417616, 522020, 835232, 1044040, 1670464, 2088080, 3340928, 4176160, 8352320, 16704640]

約数ペア:

[(1, 16704640), (2, 8352320), (4, 4176160), (5, 3340928), (8, 2088080), (10, 1670464), (16, 1044040), (20, 835232), (32, 522020), (40, 417616), (43, 388480), (64, 261010), (80, 208808), (86, 194240), (128, 130505), (160, 104404), (172, 97120), (215, 77696), (320, 52202), (344, 48560), (430, 38848), (607, 27520), (640, 26101), (688, 24280), (860, 19424), (1214, 13760), (1376, 12140), (1720, 9712), (2428, 6880), (2752, 6070), (3035, 5504), (3440, 4856)]