639058966

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 1206374400

約数和(自身を除く): 567315434

約数列:

[1, 2, 7, 13, 14, 26, 79, 91, 158, 169, 182, 263, 338, 526, 553, 1027, 1106, 1183, 1841, 2054, 2197, 2366, 3419, 3682, 4394, 6838, 7189, 13351, 14378, 15379, 20777, 23933, 26702, 30758, 41554, 44447, 47866, 88894, 93457, 145439, 173563, 186914, 270101, 290878, 311129, 347126, 540202, 577811, 622258, 1155622, 1214941, 1890707, 2429882, 3511313, 3781414, 4044677, 7022626, 8089354, 24579191, 45647069, 49158382, 91294138, 319529483, 639058966]

約数ペア:

[(1, 639058966), (2, 319529483), (7, 91294138), (13, 49158382), (14, 45647069), (26, 24579191), (79, 8089354), (91, 7022626), (158, 4044677), (169, 3781414), (182, 3511313), (263, 2429882), (338, 1890707), (526, 1214941), (553, 1155622), (1027, 622258), (1106, 577811), (1183, 540202), (1841, 347126), (2054, 311129), (2197, 290878), (2366, 270101), (3419, 186914), (3682, 173563), (4394, 145439), (6838, 93457), (7189, 88894), (13351, 47866), (14378, 44447), (15379, 41554), (20777, 30758), (23933, 26702)]