278704322

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 475460352

約数和(自身を除く): 196756030

約数列:

[1, 2, 13, 26, 31, 62, 67, 134, 169, 338, 397, 403, 794, 806, 871, 1742, 2077, 4154, 5161, 5239, 10322, 10478, 11323, 12307, 22646, 24614, 26599, 27001, 53198, 54002, 67093, 134186, 159991, 319982, 345787, 351013, 691574, 702026, 824569, 1649138, 2079883, 4159766, 4495231, 8990462, 10719397, 21438794, 139352161, 278704322]

約数ペア:

[(1, 278704322), (2, 139352161), (13, 21438794), (26, 10719397), (31, 8990462), (62, 4495231), (67, 4159766), (134, 2079883), (169, 1649138), (338, 824569), (397, 702026), (403, 691574), (794, 351013), (806, 345787), (871, 319982), (1742, 159991), (2077, 134186), (4154, 67093), (5161, 54002), (5239, 53198), (10322, 27001), (10478, 26599), (11323, 24614), (12307, 22646)]