668257490

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{2671}}^1$

素因数の和:3002

約数の個数: 32

約数和(自身を含む): 1218945024

約数和(自身を除く): 550687534

約数列:

[1, 2, 5, 10, 127, 197, 254, 394, 635, 985, 1270, 1970, 2671, 5342, 13355, 25019, 26710, 50038, 125095, 250190, 339217, 526187, 678434, 1052374, 1696085, 2630935, 3392170, 5261870, 66825749, 133651498, 334128745, 668257490]

約数ペア:

[(1, 668257490), (2, 334128745), (5, 133651498), (10, 66825749), (127, 5261870), (197, 3392170), (254, 2630935), (394, 1696085), (635, 1052374), (985, 678434), (1270, 526187), (1970, 339217), (2671, 250190), (5342, 125095), (13355, 50038), (25019, 26710)]