81513178

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1\times {\mathrm{739}}^1$

素因数の和:1293

約数の個数: 16

約数和(自身を含む): 123662880

約数和(自身を除く): 42149702

約数列:

[1, 2, 131, 262, 421, 739, 842, 1478, 55151, 96809, 110302, 193618, 311119, 622238, 40756589, 81513178]

約数ペア:

[(1, 81513178), (2, 40756589), (131, 622238), (262, 311119), (421, 193618), (739, 110302), (842, 96809), (1478, 55151)]