128952746

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{397}}^1$

素因数の和:487

約数の個数: 36

約数和(自身を含む): 216972486

約数和(自身を除く): 88019740

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 397, 403, 794, 806, 961, 1922, 5161, 5239, 10322, 10478, 12307, 12493, 24614, 24986, 67093, 134186, 159991, 162409, 319982, 324818, 381517, 763034, 2079883, 4159766, 4959721, 9919442, 64476373, 128952746]

約数ペア:

[(1, 128952746), (2, 64476373), (13, 9919442), (26, 4959721), (31, 4159766), (62, 2079883), (169, 763034), (338, 381517), (397, 324818), (403, 319982), (794, 162409), (806, 159991), (961, 134186), (1922, 67093), (5161, 24986), (5239, 24614), (10322, 12493), (10478, 12307)]