205949955

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{433}}^1\times {\mathrm{857}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 339603264

約数和(自身を除く): 133653309

約数列:

[1, 3, 5, 15, 37, 111, 185, 433, 555, 857, 1299, 2165, 2571, 4285, 6495, 12855, 16021, 31709, 48063, 80105, 95127, 158545, 240315, 371081, 475635, 1113243, 1855405, 5566215, 13729997, 41189991, 68649985, 205949955]

約数ペア:

[(1, 205949955), (3, 68649985), (5, 41189991), (15, 13729997), (37, 5566215), (111, 1855405), (185, 1113243), (433, 475635), (555, 371081), (857, 240315), (1299, 158545), (2165, 95127), (2571, 80105), (4285, 48063), (6495, 31709), (12855, 16021)]