20216464

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40759}}^1$

素因数の和:40798

約数の個数: 20

約数和(自身を含む): 40433920

約数和(自身を除く): 20217456

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40759, 81518, 163036, 326072, 652144, 1263529, 2527058, 5054116, 10108232, 20216464]

約数ペア:

[(1, 20216464), (2, 10108232), (4, 5054116), (8, 2527058), (16, 1263529), (31, 652144), (62, 326072), (124, 163036), (248, 81518), (496, 40759)]