840208

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{3089}}^1$

素因数の和:3114

約数の個数: 20

約数和(自身を含む): 1724220

約数和(自身を除く): 884012

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 3089, 6178, 12356, 24712, 49424, 52513, 105026, 210052, 420104, 840208]

約数ペア:

[(1, 840208), (2, 420104), (4, 210052), (8, 105026), (16, 52513), (17, 49424), (34, 24712), (68, 12356), (136, 6178), (272, 3089)]