81642178

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1\times {\mathrm{1213}}^1$

素因数の和:1749

約数の個数: 16

約数和(自身を含む): 124512696

約数和(自身を除く): 42870518

約数列:

[1, 2, 73, 146, 461, 922, 1213, 2426, 33653, 67306, 88549, 177098, 559193, 1118386, 40821089, 81642178]

約数ペア:

[(1, 81642178), (2, 40821089), (73, 1118386), (146, 559193), (461, 177098), (922, 88549), (1213, 67306), (2426, 33653)]