257747478

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{327923}}^1$

素因数の和:328059

約数の個数: 16

約数和(自身を含む): 519431616

約数和(自身を除く): 261684138

約数列:

[1, 2, 3, 6, 131, 262, 393, 786, 327923, 655846, 983769, 1967538, 42957913, 85915826, 128873739, 257747478]

約数ペア:

[(1, 257747478), (2, 128873739), (3, 85915826), (6, 42957913), (131, 1967538), (262, 983769), (393, 655846), (786, 327923)]