161971696

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1087}}^1$

素因数の和:1301

約数の個数: 40

約数和(自身を含む): 321090560

約数和(自身を除く): 159118864

約数列:

[1, 2, 4, 8, 16, 67, 134, 139, 268, 278, 536, 556, 1072, 1087, 1112, 2174, 2224, 4348, 8696, 9313, 17392, 18626, 37252, 72829, 74504, 145658, 149008, 151093, 291316, 302186, 582632, 604372, 1165264, 1208744, 2417488, 10123231, 20246462, 40492924, 80985848, 161971696]

約数ペア:

[(1, 161971696), (2, 80985848), (4, 40492924), (8, 20246462), (16, 10123231), (67, 2417488), (134, 1208744), (139, 1165264), (268, 604372), (278, 582632), (536, 302186), (556, 291316), (1072, 151093), (1087, 149008), (1112, 145658), (2174, 74504), (2224, 72829), (4348, 37252), (8696, 18626), (9313, 17392)]