285707920

素因数分解:

$2^4\times 5^1\times {\mathrm{1783}}^1\times {\mathrm{2003}}^1$

素因数の和:3799

約数の個数: 40

約数和(自身を含む): 664975296

約数和(自身を除く): 379267376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1783, 2003, 3566, 4006, 7132, 8012, 8915, 10015, 14264, 16024, 17830, 20030, 28528, 32048, 35660, 40060, 71320, 80120, 142640, 160240, 3571349, 7142698, 14285396, 17856745, 28570792, 35713490, 57141584, 71426980, 142853960, 285707920]

約数ペア:

[(1, 285707920), (2, 142853960), (4, 71426980), (5, 57141584), (8, 35713490), (10, 28570792), (16, 17856745), (20, 14285396), (40, 7142698), (80, 3571349), (1783, 160240), (2003, 142640), (3566, 80120), (4006, 71320), (7132, 40060), (8012, 35660), (8915, 32048), (10015, 28528), (14264, 20030), (16024, 17830)]