20176508728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{687773}}^1$

素因数の和:687991

約数の個数: 32

約数和(自身を含む): 40028446800

約数和(自身を除く): 19851938072

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 193, 386, 772, 1544, 3667, 7334, 14668, 29336, 687773, 1375546, 2751092, 5502184, 13067687, 26135374, 52270748, 104541496, 132740189, 265480378, 530960756, 1061921512, 2522063591, 5044127182, 10088254364, 20176508728]

約数ペア:

[(1, 20176508728), (2, 10088254364), (4, 5044127182), (8, 2522063591), (19, 1061921512), (38, 530960756), (76, 265480378), (152, 132740189), (193, 104541496), (386, 52270748), (772, 26135374), (1544, 13067687), (3667, 5502184), (7334, 2751092), (14668, 1375546), (29336, 687773)]