389940272

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{155231}}^1$

素因数の和:155396

約数の個数: 20

約数和(自身を含む): 760326336

約数和(自身を除く): 370386064

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 155231, 310462, 620924, 1241848, 2483696, 24371267, 48742534, 97485068, 194970136, 389940272]

約数ペア:

[(1, 389940272), (2, 194970136), (4, 97485068), (8, 48742534), (16, 24371267), (157, 2483696), (314, 1241848), (628, 620924), (1256, 310462), (2512, 155231)]