257419942

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{1187}}^1$

素因数の和:1660

約数の個数: 32

約数和(自身を含む): 439084800

約数和(自身を除く): 181664858

約数列:

[1, 2, 13, 19, 26, 38, 247, 439, 494, 878, 1187, 2374, 5707, 8341, 11414, 15431, 16682, 22553, 30862, 45106, 108433, 216866, 293189, 521093, 586378, 1042186, 6774209, 9900767, 13548418, 19801534, 128709971, 257419942]

約数ペア:

[(1, 257419942), (2, 128709971), (13, 19801534), (19, 13548418), (26, 9900767), (38, 6774209), (247, 1042186), (439, 586378), (494, 521093), (878, 293189), (1187, 216866), (2374, 108433), (5707, 45106), (8341, 30862), (11414, 22553), (15431, 16682)]