217515805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{449}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 292572000

約数和(自身を除く): 75056195

約数列:

[1, 5, 13, 29, 65, 145, 257, 377, 449, 1285, 1885, 2245, 3341, 5837, 7453, 13021, 16705, 29185, 37265, 65105, 96889, 115393, 169273, 484445, 576965, 846365, 1500109, 3346397, 7500545, 16731985, 43503161, 217515805]

約数ペア:

[(1, 217515805), (5, 43503161), (13, 16731985), (29, 7500545), (65, 3346397), (145, 1500109), (257, 846365), (377, 576965), (449, 484445), (1285, 169273), (1885, 115393), (2245, 96889), (3341, 65105), (5837, 37265), (7453, 29185), (13021, 16705)]