128082608

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{19963}}^1$

素因数の和:20372

約数の個数: 20

約数和(自身を含む): 248791368

約数和(自身を除く): 120708760

約数列:

[1, 2, 4, 8, 16, 401, 802, 1604, 3208, 6416, 19963, 39926, 79852, 159704, 319408, 8005163, 16010326, 32020652, 64041304, 128082608]

約数ペア:

[(1, 128082608), (2, 64041304), (4, 32020652), (8, 16010326), (16, 8005163), (401, 319408), (802, 159704), (1604, 79852), (3208, 39926), (6416, 19963)]