81660355

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1031}}^1$

素因数の和:1147

約数の個数: 32

約数和(自身を含む): 117301248

約数和(自身を除く): 35640893

約数列:

[1, 5, 7, 31, 35, 73, 155, 217, 365, 511, 1031, 1085, 2263, 2555, 5155, 7217, 11315, 15841, 31961, 36085, 75263, 79205, 159805, 223727, 376315, 526841, 1118635, 2333153, 2634205, 11665765, 16332071, 81660355]

約数ペア:

[(1, 81660355), (5, 16332071), (7, 11665765), (31, 2634205), (35, 2333153), (73, 1118635), (155, 526841), (217, 376315), (365, 223727), (511, 159805), (1031, 79205), (1085, 75263), (2263, 36085), (2555, 31961), (5155, 15841), (7217, 11315)]