56720489

素因数分解:

$7^2\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 67977288

約数和(自身を除く): 11256799

約数列:

[1, 7, 49, 73, 101, 157, 511, 707, 1099, 3577, 4949, 7373, 7693, 11461, 15857, 51611, 80227, 110999, 361277, 561589, 776993, 1157561, 8102927, 56720489]

約数ペア:

[(1, 56720489), (7, 8102927), (49, 1157561), (73, 776993), (101, 561589), (157, 361277), (511, 110999), (707, 80227), (1099, 51611), (3577, 15857), (4949, 11461), (7373, 7693)]