31420280

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1307}}^1$

素因数の和:1919

約数の個数: 32

約数和(自身を含む): 70867440

約数和(自身を除く): 39447160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 1202, 1307, 2404, 2614, 3005, 4808, 5228, 6010, 6535, 10456, 12020, 13070, 24040, 26140, 52280, 785507, 1571014, 3142028, 3927535, 6284056, 7855070, 15710140, 31420280]

約数ペア:

[(1, 31420280), (2, 15710140), (4, 7855070), (5, 6284056), (8, 3927535), (10, 3142028), (20, 1571014), (40, 785507), (601, 52280), (1202, 26140), (1307, 24040), (2404, 13070), (2614, 12020), (3005, 10456), (4808, 6535), (5228, 6010)]