128412656

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195751}}^1$

素因数の和:195800

約数の個数: 20

約数和(自身を含む): 254869104

約数和(自身を除く): 126456448

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195751, 391502, 783004, 1566008, 3132016, 8025791, 16051582, 32103164, 64206328, 128412656]

約数ペア:

[(1, 128412656), (2, 64206328), (4, 32103164), (8, 16051582), (16, 8025791), (41, 3132016), (82, 1566008), (164, 783004), (328, 391502), (656, 195751)]