208632020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{117209}}^1$

素因数の和:117307

約数の個数: 24

約数和(自身を含む): 443053800

約数和(自身を除く): 234421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 117209, 234418, 468836, 586045, 1172090, 2344180, 10431601, 20863202, 41726404, 52158005, 104316010, 208632020]

約数ペア:

[(1, 208632020), (2, 104316010), (4, 52158005), (5, 41726404), (10, 20863202), (20, 10431601), (89, 2344180), (178, 1172090), (356, 586045), (445, 468836), (890, 234418), (1780, 117209)]