20286368

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 42710976

約数和(自身を除く): 22424608

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 86, 92, 172, 184, 344, 368, 641, 688, 736, 989, 1282, 1376, 1978, 2564, 3956, 5128, 7912, 10256, 14743, 15824, 20512, 27563, 29486, 31648, 55126, 58972, 110252, 117944, 220504, 235888, 441008, 471776, 633949, 882016, 1267898, 2535796, 5071592, 10143184, 20286368]

約数ペア:

[(1, 20286368), (2, 10143184), (4, 5071592), (8, 2535796), (16, 1267898), (23, 882016), (32, 633949), (43, 471776), (46, 441008), (86, 235888), (92, 220504), (172, 117944), (184, 110252), (344, 58972), (368, 55126), (641, 31648), (688, 29486), (736, 27563), (989, 20512), (1282, 15824), (1376, 14743), (1978, 10256), (2564, 7912), (3956, 5128)]