256620976

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{517381}}^1$

素因数の和:517420

約数の個数: 20

約数和(自身を含む): 513242944

約数和(自身を除く): 256621968

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 517381, 1034762, 2069524, 4139048, 8278096, 16038811, 32077622, 64155244, 128310488, 256620976]

約数ペア:

[(1, 256620976), (2, 128310488), (4, 64155244), (8, 32077622), (16, 16038811), (31, 8278096), (62, 4139048), (124, 2069524), (248, 1034762), (496, 517381)]