19780352

素因数分解:

$2^8\times {\mathrm{77267}}^1$

素因数の和:77283

約数の個数: 18

約数和(自身を含む): 39483948

約数和(自身を除く): 19703596

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 77267, 154534, 309068, 618136, 1236272, 2472544, 4945088, 9890176, 19780352]

約数ペア:

[(1, 19780352), (2, 9890176), (4, 4945088), (8, 2472544), (16, 1236272), (32, 618136), (64, 309068), (128, 154534), (256, 77267)]