20856520

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{859}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 47059200

約数和(自身を除く): 26202680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 859, 1214, 1718, 2428, 3035, 3436, 4295, 4856, 6070, 6872, 8590, 12140, 17180, 24280, 34360, 521413, 1042826, 2085652, 2607065, 4171304, 5214130, 10428260, 20856520]

約数ペア:

[(1, 20856520), (2, 10428260), (4, 5214130), (5, 4171304), (8, 2607065), (10, 2085652), (20, 1042826), (40, 521413), (607, 34360), (859, 24280), (1214, 17180), (1718, 12140), (2428, 8590), (3035, 6872), (3436, 6070), (4295, 4856)]