81908168

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{42839}}^1$

素因数の和:43084

約数の個数: 16

約数和(自身を含む): 154224000

約数和(自身を除く): 72315832

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 42839, 85678, 171356, 342712, 10238521, 20477042, 40954084, 81908168]

約数ペア:

[(1, 81908168), (2, 40954084), (4, 20477042), (8, 10238521), (239, 342712), (478, 171356), (956, 85678), (1912, 42839)]