128243408

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195493}}^1$

素因数の和:195542

約数の個数: 20

約数和(自身を含む): 254533188

約数和(自身を除く): 126289780

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195493, 390986, 781972, 1563944, 3127888, 8015213, 16030426, 32060852, 64121704, 128243408]

約数ペア:

[(1, 128243408), (2, 64121704), (4, 32060852), (8, 16030426), (16, 8015213), (41, 3127888), (82, 1563944), (164, 781972), (328, 390986), (656, 195493)]