209969295

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{3061}}^1$

素因数の和:3355

約数の個数: 32

約数和(自身を含む): 357151680

約数和(自身を除く): 147182385

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 269, 807, 1345, 3061, 4035, 4573, 9183, 13719, 15305, 22865, 45915, 52037, 68595, 156111, 260185, 780555, 823409, 2470227, 4117045, 12351135, 13997953, 41993859, 69989765, 209969295]

約数ペア:

[(1, 209969295), (3, 69989765), (5, 41993859), (15, 13997953), (17, 12351135), (51, 4117045), (85, 2470227), (255, 823409), (269, 780555), (807, 260185), (1345, 156111), (3061, 68595), (4035, 52037), (4573, 45915), (9183, 22865), (13719, 15305)]