256218495

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{3121}}^1$

素因数の和:3563

約数の個数: 32

約数和(自身を含む): 442674624

約数和(自身を除く): 186456129

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 421, 1263, 2105, 3121, 5473, 6315, 9363, 15605, 16419, 27365, 40573, 46815, 82095, 121719, 202865, 608595, 1313941, 3941823, 6569705, 17081233, 19709115, 51243699, 85406165, 256218495]

約数ペア:

[(1, 256218495), (3, 85406165), (5, 51243699), (13, 19709115), (15, 17081233), (39, 6569705), (65, 3941823), (195, 1313941), (421, 608595), (1263, 202865), (2105, 121719), (3121, 82095), (5473, 46815), (6315, 40573), (9363, 27365), (15605, 16419)]