213728305

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{3637}}^1$

素因数の和:3745

約数の個数: 32

約数和(自身を含む): 310132224

約数和(自身を除く): 96403919

約数列:

[1, 5, 7, 23, 35, 73, 115, 161, 365, 511, 805, 1679, 2555, 3637, 8395, 11753, 18185, 25459, 58765, 83651, 127295, 265501, 418255, 585557, 1327505, 1858507, 2927785, 6106523, 9292535, 30532615, 42745661, 213728305]

約数ペア:

[(1, 213728305), (5, 42745661), (7, 30532615), (23, 9292535), (35, 6106523), (73, 2927785), (115, 1858507), (161, 1327505), (365, 585557), (511, 418255), (805, 265501), (1679, 127295), (2555, 83651), (3637, 58765), (8395, 25459), (11753, 18185)]