256827440

素因数分解:

$2^4\times 5^1\times {\mathrm{547}}^1\times {\mathrm{5869}}^1$

素因数の和:6429

約数の個数: 40

約数和(自身を含む): 598317360

約数和(自身を除く): 341489920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 547, 1094, 2188, 2735, 4376, 5470, 5869, 8752, 10940, 11738, 21880, 23476, 29345, 43760, 46952, 58690, 93904, 117380, 234760, 469520, 3210343, 6420686, 12841372, 16051715, 25682744, 32103430, 51365488, 64206860, 128413720, 256827440]

約数ペア:

[(1, 256827440), (2, 128413720), (4, 64206860), (5, 51365488), (8, 32103430), (10, 25682744), (16, 16051715), (20, 12841372), (40, 6420686), (80, 3210343), (547, 469520), (1094, 234760), (2188, 117380), (2735, 93904), (4376, 58690), (5470, 46952), (5869, 43760), (8752, 29345), (10940, 23476), (11738, 21880)]