1289867878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{9787}}^1$

素因数の和:9976

約数の個数: 32

約数和(自身を含む): 2155787424

約数和(自身を除く): 865919546

約数列:

[1, 2, 13, 26, 37, 74, 137, 274, 481, 962, 1781, 3562, 5069, 9787, 10138, 19574, 65897, 127231, 131794, 254462, 362119, 724238, 1340819, 2681638, 4707547, 9415094, 17430647, 34861294, 49610303, 99220606, 644933939, 1289867878]

約数ペア:

[(1, 1289867878), (2, 644933939), (13, 99220606), (26, 49610303), (37, 34861294), (74, 17430647), (137, 9415094), (274, 4707547), (481, 2681638), (962, 1340819), (1781, 724238), (3562, 362119), (5069, 254462), (9787, 131794), (10138, 127231), (19574, 65897)]