27990755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 38937024

約数和(自身を除く): 10946269

約数列:

[1, 5, 13, 17, 65, 73, 85, 221, 347, 365, 949, 1105, 1241, 1735, 4511, 4745, 5899, 6205, 16133, 22555, 25331, 29495, 76687, 80665, 126655, 329303, 383435, 430627, 1646515, 2153135, 5598151, 27990755]

約数ペア:

[(1, 27990755), (5, 5598151), (13, 2153135), (17, 1646515), (65, 430627), (73, 383435), (85, 329303), (221, 126655), (347, 80665), (365, 76687), (949, 29495), (1105, 25331), (1241, 22555), (1735, 16133), (4511, 6205), (4745, 5899)]