20091928

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{28219}}^1$

素因数の和:28314

約数の個数: 16

約数和(自身を含む): 38097000

約数和(自身を除く): 18005072

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 28219, 56438, 112876, 225752, 2511491, 5022982, 10045964, 20091928]

約数ペア:

[(1, 20091928), (2, 10045964), (4, 5022982), (8, 2511491), (89, 225752), (178, 112876), (356, 56438), (712, 28219)]