278340738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{20627}}^1$

素因数の和:20818

約数の個数: 32

約数和(自身を含む): 602997696

約数和(自身を除く): 324656958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 173, 346, 519, 1038, 2249, 4498, 6747, 13494, 20627, 41254, 61881, 123762, 268151, 536302, 804453, 1608906, 3568471, 7136942, 10705413, 21410826, 46390123, 92780246, 139170369, 278340738]

約数ペア:

[(1, 278340738), (2, 139170369), (3, 92780246), (6, 46390123), (13, 21410826), (26, 10705413), (39, 7136942), (78, 3568471), (173, 1608906), (346, 804453), (519, 536302), (1038, 268151), (2249, 123762), (4498, 61881), (6747, 41254), (13494, 20627)]