2561639758

素因数分解:

$2^1\times {\mathrm{349}}^1\times {\mathrm{659}}^1\times {\mathrm{5569}}^1$

素因数の和:6579

約数の個数: 16

約数和(自身を含む): 3860010000

約数和(自身を除く): 1298370242

約数列:

[1, 2, 349, 659, 698, 1318, 5569, 11138, 229991, 459982, 1943581, 3669971, 3887162, 7339942, 1280819879, 2561639758]

約数ペア:

[(1, 2561639758), (2, 1280819879), (349, 7339942), (659, 3887162), (698, 3669971), (1318, 1943581), (5569, 459982), (11138, 229991)]