81904090

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{134269}}^1$

素因数の和:134337

約数の個数: 16

約数和(自身を含む): 149845320

約数和(自身を除く): 67941230

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 134269, 268538, 671345, 1342690, 8190409, 16380818, 40952045, 81904090]

約数ペア:

[(1, 81904090), (2, 40952045), (5, 16380818), (10, 8190409), (61, 1342690), (122, 671345), (305, 268538), (610, 134269)]