20171581555

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{12197}}^1$

素因数の和:12495

約数の個数: 32

約数和(自身を含む): 25736413824

約数和(自身を除く): 5564832269

約数列:

[1, 5, 23, 73, 115, 197, 365, 985, 1679, 4531, 8395, 12197, 14381, 22655, 60985, 71905, 280531, 330763, 890381, 1402655, 1653815, 2402809, 4451905, 12014045, 20478763, 55264607, 102393815, 175405057, 276323035, 877025285, 4034316311, 20171581555]

約数ペア:

[(1, 20171581555), (5, 4034316311), (23, 877025285), (73, 276323035), (115, 175405057), (197, 102393815), (365, 55264607), (985, 20478763), (1679, 12014045), (4531, 4451905), (8395, 2402809), (12197, 1653815), (14381, 1402655), (22655, 890381), (60985, 330763), (71905, 280531)]