208506670

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{81131}}^1$

素因数の和:81395

約数の個数: 16

約数和(自身を含む): 376777008

約数和(自身を除く): 168270338

約数列:

[1, 2, 5, 10, 257, 514, 1285, 2570, 81131, 162262, 405655, 811310, 20850667, 41701334, 104253335, 208506670]

約数ペア:

[(1, 208506670), (2, 104253335), (5, 41701334), (10, 20850667), (257, 811310), (514, 405655), (1285, 162262), (2570, 81131)]