204920492816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{985194677}}^1$

素因数の和:985194698

約数の個数: 20

約数和(自身を含む): 427574490252

約数和(自身を除く): 222653997436

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 985194677, 1970389354, 3940778708, 7881557416, 12807530801, 15763114832, 25615061602, 51230123204, 102460246408, 204920492816]

約数ペア:

[(1, 204920492816), (2, 102460246408), (4, 51230123204), (8, 25615061602), (13, 15763114832), (16, 12807530801), (26, 7881557416), (52, 3940778708), (104, 1970389354), (208, 985194677)]