668996848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3216331}}^1$

素因数の和:3216352

約数の個数: 20

約数和(自身を含む): 1395888088

約数和(自身を除く): 726891240

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3216331, 6432662, 12865324, 25730648, 41812303, 51461296, 83624606, 167249212, 334498424, 668996848]

約数ペア:

[(1, 668996848), (2, 334498424), (4, 167249212), (8, 83624606), (13, 51461296), (16, 41812303), (26, 25730648), (52, 12865324), (104, 6432662), (208, 3216331)]