1388409620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5340037}}^1$

素因数の和:5340059

約数の個数: 24

約数和(自身を含む): 3139942344

約数和(自身を除く): 1751532724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5340037, 10680074, 21360148, 26700185, 53400370, 69420481, 106800740, 138840962, 277681924, 347102405, 694204810, 1388409620]

約数ペア:

[(1, 1388409620), (2, 694204810), (4, 347102405), (5, 277681924), (10, 138840962), (13, 106800740), (20, 69420481), (26, 53400370), (52, 26700185), (65, 21360148), (130, 10680074), (260, 5340037)]