20512890848

素因数分解:

$2^5\times {\mathrm{4007}}^1\times {\mathrm{159977}}^1$

素因数の和:163994

約数の個数: 24

約数和(自身を含む): 40395084912

約数和(自身を除く): 19882194064

約数列:

[1, 2, 4, 8, 16, 32, 4007, 8014, 16028, 32056, 64112, 128224, 159977, 319954, 639908, 1279816, 2559632, 5119264, 641027839, 1282055678, 2564111356, 5128222712, 10256445424, 20512890848]

約数ペア:

[(1, 20512890848), (2, 10256445424), (4, 5128222712), (8, 2564111356), (16, 1282055678), (32, 641027839), (4007, 5119264), (8014, 2559632), (16028, 1279816), (32056, 639908), (64112, 319954), (128224, 159977)]