81686865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{823}}^1$

素因数の和:1353

約数の個数: 32

約数和(自身を含む): 141200640

約数和(自身を除く): 59513775

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 509, 823, 1527, 2469, 2545, 4115, 6617, 7635, 10699, 12345, 19851, 32097, 33085, 53495, 99255, 160485, 418907, 1256721, 2094535, 5445791, 6283605, 16337373, 27228955, 81686865]

約数ペア:

[(1, 81686865), (3, 27228955), (5, 16337373), (13, 6283605), (15, 5445791), (39, 2094535), (65, 1256721), (195, 418907), (509, 160485), (823, 99255), (1527, 53495), (2469, 33085), (2545, 32097), (4115, 19851), (6617, 12345), (7635, 10699)]