205156917440

素因数分解:

$2^6\times 5^1\times {\mathrm{643}}^1\times {\mathrm{997069}}^1$

素因数の和:997729

約数の個数: 56

約数和(自身を含む): 489290166960

約数和(自身を除く): 284133249520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 643, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 20576, 25720, 41152, 51440, 102880, 205760, 997069, 1994138, 3988276, 4985345, 7976552, 9970690, 15953104, 19941380, 31906208, 39882760, 63812416, 79765520, 159531040, 319062080, 641115367, 1282230734, 2564461468, 3205576835, 5128922936, 6411153670, 10257845872, 12822307340, 20515691744, 25644614680, 41031383488, 51289229360, 102578458720, 205156917440]

約数ペア:

[(1, 205156917440), (2, 102578458720), (4, 51289229360), (5, 41031383488), (8, 25644614680), (10, 20515691744), (16, 12822307340), (20, 10257845872), (32, 6411153670), (40, 5128922936), (64, 3205576835), (80, 2564461468), (160, 1282230734), (320, 641115367), (643, 319062080), (1286, 159531040), (2572, 79765520), (3215, 63812416), (5144, 39882760), (6430, 31906208), (10288, 19941380), (12860, 15953104), (20576, 9970690), (25720, 7976552), (41152, 4985345), (51440, 3988276), (102880, 1994138), (205760, 997069)]