20810288

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31723}}^1$

素因数の和:31772

約数の個数: 20

約数和(自身を含む): 41304648

約数和(自身を除く): 20494360

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31723, 63446, 126892, 253784, 507568, 1300643, 2601286, 5202572, 10405144, 20810288]

約数ペア:

[(1, 20810288), (2, 10405144), (4, 5202572), (8, 2601286), (16, 1300643), (41, 507568), (82, 253784), (164, 126892), (328, 63446), (656, 31723)]