20184728020

素因数分解:

$2^2\times 5^1\times {\mathrm{4909}}^1\times {\mathrm{205589}}^1$

素因数の和:210507

約数の個数: 24

約数和(自身を含む): 42396769800

約数和(自身を除く): 22212041780

約数列:

[1, 2, 4, 5, 10, 20, 4909, 9818, 19636, 24545, 49090, 98180, 205589, 411178, 822356, 1027945, 2055890, 4111780, 1009236401, 2018472802, 4036945604, 5046182005, 10092364010, 20184728020]

約数ペア:

[(1, 20184728020), (2, 10092364010), (4, 5046182005), (5, 4036945604), (10, 2018472802), (20, 1009236401), (4909, 4111780), (9818, 2055890), (19636, 1027945), (24545, 822356), (49090, 411178), (98180, 205589)]