18580280

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7873}}^1$

素因数の和:7943

約数の個数: 32

約数和(自身を含む): 42519600

約数和(自身を除く): 23939320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 7873, 15746, 31492, 39365, 62984, 78730, 157460, 314920, 464507, 929014, 1858028, 2322535, 3716056, 4645070, 9290140, 18580280]

約数ペア:

[(1, 18580280), (2, 9290140), (4, 4645070), (5, 3716056), (8, 2322535), (10, 1858028), (20, 929014), (40, 464507), (59, 314920), (118, 157460), (236, 78730), (295, 62984), (472, 39365), (590, 31492), (1180, 15746), (2360, 7873)]