208598585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{607}}^1$

素因数の和:953

約数の個数: 32

約数和(自身を含む): 286820352

約数和(自身を除く): 78221767

約数列:

[1, 5, 13, 17, 65, 85, 221, 311, 607, 1105, 1555, 3035, 4043, 5287, 7891, 10319, 20215, 26435, 39455, 51595, 68731, 134147, 188777, 343655, 670735, 943885, 2454101, 3209209, 12270505, 16046045, 41719717, 208598585]

約数ペア:

[(1, 208598585), (5, 41719717), (13, 16046045), (17, 12270505), (65, 3209209), (85, 2454101), (221, 943885), (311, 670735), (607, 343655), (1105, 188777), (1555, 134147), (3035, 68731), (4043, 51595), (5287, 39455), (7891, 26435), (10319, 20215)]