18684290

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 34663680

約数和(自身を除く): 15979390

約数列:

[1, 2, 5, 10, 67, 79, 134, 158, 335, 353, 395, 670, 706, 790, 1765, 3530, 5293, 10586, 23651, 26465, 27887, 47302, 52930, 55774, 118255, 139435, 236510, 278870, 1868429, 3736858, 9342145, 18684290]

約数ペア:

[(1, 18684290), (2, 9342145), (5, 3736858), (10, 1868429), (67, 278870), (79, 236510), (134, 139435), (158, 118255), (335, 55774), (353, 52930), (395, 47302), (670, 27887), (706, 26465), (790, 23651), (1765, 10586), (3530, 5293)]