81584464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392233}}^1$

素因数の和:392254

約数の個数: 20

約数和(自身を含む): 170229556

約数和(自身を除く): 88645092

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392233, 784466, 1568932, 3137864, 5099029, 6275728, 10198058, 20396116, 40792232, 81584464]

約数ペア:

[(1, 81584464), (2, 40792232), (4, 20396116), (8, 10198058), (13, 6275728), (16, 5099029), (26, 3137864), (52, 1568932), (104, 784466), (208, 392233)]