20041576

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 38556000

約数和(自身を除く): 18514424

約数列:

[1, 2, 4, 8, 67, 134, 139, 268, 269, 278, 536, 538, 556, 1076, 1112, 2152, 9313, 18023, 18626, 36046, 37252, 37391, 72092, 74504, 74782, 144184, 149564, 299128, 2505197, 5010394, 10020788, 20041576]

約数ペア:

[(1, 20041576), (2, 10020788), (4, 5010394), (8, 2505197), (67, 299128), (134, 149564), (139, 144184), (268, 74782), (269, 74504), (278, 72092), (536, 37391), (538, 37252), (556, 36046), (1076, 18626), (1112, 18023), (2152, 9313)]