20790865904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76437007}}^1$

素因数の和:76437032

約数の個数: 20

約数和(自身を含む): 42651850464

約数和(自身を除く): 21860984560

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76437007, 152874014, 305748028, 611496056, 1222992112, 1299429119, 2598858238, 5197716476, 10395432952, 20790865904]

約数ペア:

[(1, 20790865904), (2, 10395432952), (4, 5197716476), (8, 2598858238), (16, 1299429119), (17, 1222992112), (34, 611496056), (68, 305748028), (136, 152874014), (272, 76437007)]