129864208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{261823}}^1$

素因数の和:261862

約数の個数: 20

約数和(自身を含む): 259729408

約数和(自身を除く): 129865200

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 261823, 523646, 1047292, 2094584, 4189168, 8116513, 16233026, 32466052, 64932104, 129864208]

約数ペア:

[(1, 129864208), (2, 64932104), (4, 32466052), (8, 16233026), (16, 8116513), (31, 4189168), (62, 2094584), (124, 1047292), (248, 523646), (496, 261823)]