388975678

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2249

約数の個数: 64

約数和(自身を含む): 767112192

約数和(自身を除く): 378136514

約数列:

[1, 2, 7, 13, 14, 23, 26, 43, 46, 86, 91, 161, 182, 299, 301, 322, 559, 598, 602, 989, 1118, 1978, 2093, 2161, 3913, 4186, 4322, 6923, 7826, 12857, 13846, 15127, 25714, 28093, 30254, 49703, 56186, 89999, 92923, 99406, 179998, 185846, 196651, 347921, 393302, 646139, 650461, 695842, 1207999, 1292278, 1300922, 2137229, 2415998, 4274458, 4522973, 8455993, 9045946, 14960603, 16911986, 27783977, 29921206, 55567954, 194487839, 388975678]

約数ペア:

[(1, 388975678), (2, 194487839), (7, 55567954), (13, 29921206), (14, 27783977), (23, 16911986), (26, 14960603), (43, 9045946), (46, 8455993), (86, 4522973), (91, 4274458), (161, 2415998), (182, 2137229), (299, 1300922), (301, 1292278), (322, 1207999), (559, 695842), (598, 650461), (602, 646139), (989, 393302), (1118, 347921), (1978, 196651), (2093, 185846), (2161, 179998), (3913, 99406), (4186, 92923), (4322, 89999), (6923, 56186), (7826, 49703), (12857, 30254), (13846, 28093), (15127, 25714)]