212553005

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{3617}}^1$

素因数の和:3725

約数の個数: 32

約数和(自身を含む): 308427264

約数和(自身を除く): 95874259

約数列:

[1, 5, 7, 23, 35, 73, 115, 161, 365, 511, 805, 1679, 2555, 3617, 8395, 11753, 18085, 25319, 58765, 83191, 126595, 264041, 415955, 582337, 1320205, 1848287, 2911685, 6072943, 9241435, 30364715, 42510601, 212553005]

約数ペア:

[(1, 212553005), (5, 42510601), (7, 30364715), (23, 9241435), (35, 6072943), (73, 2911685), (115, 1848287), (161, 1320205), (365, 582337), (511, 415955), (805, 264041), (1679, 126595), (2555, 83191), (3617, 58765), (8395, 25319), (11753, 18085)]