65398220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{337}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 142641408

約数和(自身を除く): 77243188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 313, 337, 620, 626, 674, 1252, 1348, 1565, 1685, 3130, 3370, 6260, 6740, 9703, 10447, 19406, 20894, 38812, 41788, 48515, 52235, 97030, 104470, 105481, 194060, 208940, 210962, 421924, 527405, 1054810, 2109620, 3269911, 6539822, 13079644, 16349555, 32699110, 65398220]

約数ペア:

[(1, 65398220), (2, 32699110), (4, 16349555), (5, 13079644), (10, 6539822), (20, 3269911), (31, 2109620), (62, 1054810), (124, 527405), (155, 421924), (310, 210962), (313, 208940), (337, 194060), (620, 105481), (626, 104470), (674, 97030), (1252, 52235), (1348, 48515), (1565, 41788), (1685, 38812), (3130, 20894), (3370, 19406), (6260, 10447), (6740, 9703)]