81261416

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{327667}}^1$

素因数の和:327704

約数の個数: 16

約数和(自身を含む): 157280640

約数和(自身を除く): 76019224

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 327667, 655334, 1310668, 2621336, 10157677, 20315354, 40630708, 81261416]

約数ペア:

[(1, 81261416), (2, 40630708), (4, 20315354), (8, 10157677), (31, 2621336), (62, 1310668), (124, 655334), (248, 327667)]