20257936

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30881}}^1$

素因数の和:30930

約数の個数: 20

約数和(自身を含む): 40208364

約数和(自身を除く): 19950428

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30881, 61762, 123524, 247048, 494096, 1266121, 2532242, 5064484, 10128968, 20257936]

約数ペア:

[(1, 20257936), (2, 10128968), (4, 5064484), (8, 2532242), (16, 1266121), (41, 494096), (82, 247048), (164, 123524), (328, 61762), (656, 30881)]