643568144

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{981049}}^1$

素因数の和:981098

約数の個数: 20

約数和(自身を含む): 1277327100

約数和(自身を除く): 633758956

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 981049, 1962098, 3924196, 7848392, 15696784, 40223009, 80446018, 160892036, 321784072, 643568144]

約数ペア:

[(1, 643568144), (2, 321784072), (4, 160892036), (8, 80446018), (16, 40223009), (41, 15696784), (82, 7848392), (164, 3924196), (328, 1962098), (656, 981049)]