20958590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72271}}^1$

素因数の和:72307

約数の個数: 16

約数和(自身を含む): 39026880

約数和(自身を除く): 18068290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72271, 144542, 361355, 722710, 2095859, 4191718, 10479295, 20958590]

約数ペア:

[(1, 20958590), (2, 10479295), (5, 4191718), (10, 2095859), (29, 722710), (58, 361355), (145, 144542), (290, 72271)]