64827260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{643}}^1$

素因数の和:794

約数の個数: 36

約数和(自身を含む): 138296424

約数和(自身を除く): 73469164

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 643, 710, 1286, 1420, 2572, 3215, 5041, 6430, 10082, 12860, 20164, 25205, 45653, 50410, 91306, 100820, 182612, 228265, 456530, 913060, 3241363, 6482726, 12965452, 16206815, 32413630, 64827260]

約数ペア:

[(1, 64827260), (2, 32413630), (4, 16206815), (5, 12965452), (10, 6482726), (20, 3241363), (71, 913060), (142, 456530), (284, 228265), (355, 182612), (643, 100820), (710, 91306), (1286, 50410), (1420, 45653), (2572, 25205), (3215, 20164), (5041, 12860), (6430, 10082)]