1640802779

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3023}}^1$

素因数の和:3120

約数の個数: 48

約数和(自身を含む): 2233889280

約数和(自身を除く): 593086501

約数列:

[1, 7, 11, 19, 49, 53, 77, 133, 209, 371, 539, 583, 931, 1007, 1463, 2597, 3023, 4081, 7049, 10241, 11077, 21161, 28567, 33253, 49343, 57437, 77539, 148127, 160219, 232771, 402059, 542773, 631807, 1121533, 1629397, 1762409, 2814413, 3044161, 4422649, 7850731, 12336863, 21309127, 30958543, 33485771, 86358041, 149163889, 234400397, 1640802779]

約数ペア:

[(1, 1640802779), (7, 234400397), (11, 149163889), (19, 86358041), (49, 33485771), (53, 30958543), (77, 21309127), (133, 12336863), (209, 7850731), (371, 4422649), (539, 3044161), (583, 2814413), (931, 1762409), (1007, 1629397), (1463, 1121533), (2597, 631807), (3023, 542773), (4081, 402059), (7049, 232771), (10241, 160219), (11077, 148127), (21161, 77539), (28567, 57437), (33253, 49343)]