80212784

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{19507}}^1$

素因数の和:19772

約数の個数: 20

約数和(自身を含む): 156024984

約数和(自身を除く): 75812200

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 19507, 39014, 78028, 156056, 312112, 5013299, 10026598, 20053196, 40106392, 80212784]

約数ペア:

[(1, 80212784), (2, 40106392), (4, 20053196), (8, 10026598), (16, 5013299), (257, 312112), (514, 156056), (1028, 78028), (2056, 39014), (4112, 19507)]