256498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 16

約数和(自身を含む): 427680

約数和(自身を除く): 171182

約数列:

[1, 2, 11, 22, 89, 131, 178, 262, 979, 1441, 1958, 2882, 11659, 23318, 128249, 256498]

約数ペア:

[(1, 256498), (2, 128249), (11, 23318), (22, 11659), (89, 2882), (131, 1958), (178, 1441), (262, 979)]