2115807620

素因数分解:

$2^2\times 5^1\times {\mathrm{6781}}^1\times {\mathrm{15601}}^1$

素因数の和:22391

約数の個数: 24

約数和(自身を含む): 4444136088

約数和(自身を除く): 2328328468

約数列:

[1, 2, 4, 5, 10, 20, 6781, 13562, 15601, 27124, 31202, 33905, 62404, 67810, 78005, 135620, 156010, 312020, 105790381, 211580762, 423161524, 528951905, 1057903810, 2115807620]

約数ペア:

[(1, 2115807620), (2, 1057903810), (4, 528951905), (5, 423161524), (10, 211580762), (20, 105790381), (6781, 312020), (13562, 156010), (15601, 135620), (27124, 78005), (31202, 67810), (33905, 62404)]