17801920

素因数分解:

$2^6\times 5^1\times {\mathrm{55631}}^1$

素因数の和:55648

約数の個数: 28

約数和(自身を含む): 42391584

約数和(自身を除く): 24589664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 55631, 111262, 222524, 278155, 445048, 556310, 890096, 1112620, 1780192, 2225240, 3560384, 4450480, 8900960, 17801920]

約数ペア:

[(1, 17801920), (2, 8900960), (4, 4450480), (5, 3560384), (8, 2225240), (10, 1780192), (16, 1112620), (20, 890096), (32, 556310), (40, 445048), (64, 278155), (80, 222524), (160, 111262), (320, 55631)]