20478264

素因数分解:

$2^3\times 3^1\times {\mathrm{643}}^1\times {\mathrm{1327}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 51313920

約数和(自身を除く): 30835656

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 643, 1286, 1327, 1929, 2572, 2654, 3858, 3981, 5144, 5308, 7716, 7962, 10616, 15432, 15924, 31848, 853261, 1706522, 2559783, 3413044, 5119566, 6826088, 10239132, 20478264]

約数ペア:

[(1, 20478264), (2, 10239132), (3, 6826088), (4, 5119566), (6, 3413044), (8, 2559783), (12, 1706522), (24, 853261), (643, 31848), (1286, 15924), (1327, 15432), (1929, 10616), (2572, 7962), (2654, 7716), (3858, 5308), (3981, 5144)]