81439095

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 138490560

約数和(自身を除く): 57051465

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 389, 821, 1167, 1945, 2463, 4105, 5835, 6613, 12315, 13957, 19839, 33065, 41871, 69785, 99195, 209355, 319369, 958107, 1596845, 4790535, 5429273, 16287819, 27146365, 81439095]

約数ペア:

[(1, 81439095), (3, 27146365), (5, 16287819), (15, 5429273), (17, 4790535), (51, 1596845), (85, 958107), (255, 319369), (389, 209355), (821, 99195), (1167, 69785), (1945, 41871), (2463, 33065), (4105, 19839), (5835, 13957), (6613, 12315)]