20855528055

素因数分解:

$3^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{185903}}^1$

素因数の和:186197

約数の個数: 40

約数和(自身を含む): 37520632512

約数和(自身を除く): 16665104457

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 277, 405, 831, 1385, 2493, 4155, 7479, 12465, 22437, 37395, 112185, 185903, 557709, 929515, 1673127, 2788545, 5019381, 8365635, 15058143, 25096905, 51495131, 75290715, 154485393, 257475655, 463456179, 772426965, 1390368537, 2317280895, 4171105611, 6951842685, 20855528055]

約数ペア:

[(1, 20855528055), (3, 6951842685), (5, 4171105611), (9, 2317280895), (15, 1390368537), (27, 772426965), (45, 463456179), (81, 257475655), (135, 154485393), (277, 75290715), (405, 51495131), (831, 25096905), (1385, 15058143), (2493, 8365635), (4155, 5019381), (7479, 2788545), (12465, 1673127), (22437, 929515), (37395, 557709), (112185, 185903)]