20646185

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 8902615

約数列:

[1, 5, 7, 35, 37, 107, 149, 185, 259, 535, 745, 749, 1043, 1295, 3745, 3959, 5215, 5513, 15943, 19795, 27565, 27713, 38591, 79715, 111601, 138565, 192955, 558005, 589891, 2949455, 4129237, 20646185]

約数ペア:

[(1, 20646185), (5, 4129237), (7, 2949455), (35, 589891), (37, 558005), (107, 192955), (149, 138565), (185, 111601), (259, 79715), (535, 38591), (745, 27713), (749, 27565), (1043, 19795), (1295, 15943), (3745, 5513), (3959, 5215)]