255708488

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 563915520

約数和(自身を除く): 308207032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 73, 142, 146, 284, 292, 497, 511, 568, 584, 881, 994, 1022, 1762, 1988, 2044, 3524, 3976, 4088, 5183, 6167, 7048, 10366, 12334, 20732, 24668, 36281, 41464, 49336, 62551, 64313, 72562, 125102, 128626, 145124, 250204, 257252, 290248, 437857, 450191, 500408, 514504, 875714, 900382, 1751428, 1800764, 3502856, 3601528, 4566223, 9132446, 18264892, 31963561, 36529784, 63927122, 127854244, 255708488]

約数ペア:

[(1, 255708488), (2, 127854244), (4, 63927122), (7, 36529784), (8, 31963561), (14, 18264892), (28, 9132446), (56, 4566223), (71, 3601528), (73, 3502856), (142, 1800764), (146, 1751428), (284, 900382), (292, 875714), (497, 514504), (511, 500408), (568, 450191), (584, 437857), (881, 290248), (994, 257252), (1022, 250204), (1762, 145124), (1988, 128626), (2044, 125102), (3524, 72562), (3976, 64313), (4088, 62551), (5183, 49336), (6167, 41464), (7048, 36281), (10366, 24668), (12334, 20732)]