25761920

素因数分解:

$2^7\times 5^1\times {\mathrm{40253}}^1$

素因数の和:40272

約数の個数: 32

約数和(自身を含む): 61588620

約数和(自身を除く): 35826700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 40253, 80506, 161012, 201265, 322024, 402530, 644048, 805060, 1288096, 1610120, 2576192, 3220240, 5152384, 6440480, 12880960, 25761920]

約数ペア:

[(1, 25761920), (2, 12880960), (4, 6440480), (5, 5152384), (8, 3220240), (10, 2576192), (16, 1610120), (20, 1288096), (32, 805060), (40, 644048), (64, 402530), (80, 322024), (128, 201265), (160, 161012), (320, 80506), (640, 40253)]