251864265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{3371}}^1$

素因数の和:3689

約数の個数: 32

約数和(自身を含む): 428270976

約数和(自身を除く): 176406711

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 293, 879, 1465, 3371, 4395, 4981, 10113, 14943, 16855, 24905, 50565, 57307, 74715, 171921, 286535, 859605, 987703, 2963109, 4938515, 14815545, 16790951, 50372853, 83954755, 251864265]

約数ペア:

[(1, 251864265), (3, 83954755), (5, 50372853), (15, 16790951), (17, 14815545), (51, 4938515), (85, 2963109), (255, 987703), (293, 859605), (879, 286535), (1465, 171921), (3371, 74715), (4395, 57307), (4981, 50565), (10113, 24905), (14943, 16855)]