205320784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{312989}}^1$

素因数の和:313038

約数の個数: 20

約数和(自身を含む): 407512980

約数和(自身を除く): 202192196

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 312989, 625978, 1251956, 2503912, 5007824, 12832549, 25665098, 51330196, 102660392, 205320784]

約数ペア:

[(1, 205320784), (2, 102660392), (4, 51330196), (8, 25665098), (16, 12832549), (41, 5007824), (82, 2503912), (164, 1251956), (328, 625978), (656, 312989)]