128260208

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{51059}}^1$

素因数の和:51224

約数の個数: 20

約数和(自身を含む): 250091880

約数和(自身を除く): 121831672

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 51059, 102118, 204236, 408472, 816944, 8016263, 16032526, 32065052, 64130104, 128260208]

約数ペア:

[(1, 128260208), (2, 64130104), (4, 32065052), (8, 16032526), (16, 8016263), (157, 816944), (314, 408472), (628, 204236), (1256, 102118), (2512, 51059)]