81043305

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1553}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 153062784

約数和(自身を除く): 72019479

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 71, 105, 147, 213, 245, 355, 497, 735, 1065, 1491, 1553, 2485, 3479, 4659, 7455, 7765, 10437, 10871, 17395, 23295, 32613, 52185, 54355, 76097, 110263, 163065, 228291, 330789, 380485, 551315, 771841, 1141455, 1653945, 2315523, 3859205, 5402887, 11577615, 16208661, 27014435, 81043305]

約数ペア:

[(1, 81043305), (3, 27014435), (5, 16208661), (7, 11577615), (15, 5402887), (21, 3859205), (35, 2315523), (49, 1653945), (71, 1141455), (105, 771841), (147, 551315), (213, 380485), (245, 330789), (355, 228291), (497, 163065), (735, 110263), (1065, 76097), (1491, 54355), (1553, 52185), (2485, 32613), (3479, 23295), (4659, 17395), (7455, 10871), (7765, 10437)]