257179286

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:709

約数の個数: 64

約数和(自身を含む): 497172480

約数和(自身を除く): 239993194

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 79, 91, 158, 182, 217, 403, 434, 553, 577, 806, 1027, 1106, 1154, 2054, 2449, 2821, 4039, 4898, 5642, 7189, 7501, 8078, 14378, 15002, 17143, 17887, 31837, 34286, 35774, 45583, 52507, 63674, 91166, 105014, 125209, 222859, 232531, 250418, 319081, 445718, 465062, 592579, 638162, 1185158, 1413073, 1627717, 2826146, 3255434, 4148053, 8296106, 9891511, 18369949, 19783022, 36739898, 128589643, 257179286]

約数ペア:

[(1, 257179286), (2, 128589643), (7, 36739898), (13, 19783022), (14, 18369949), (26, 9891511), (31, 8296106), (62, 4148053), (79, 3255434), (91, 2826146), (158, 1627717), (182, 1413073), (217, 1185158), (403, 638162), (434, 592579), (553, 465062), (577, 445718), (806, 319081), (1027, 250418), (1106, 232531), (1154, 222859), (2054, 125209), (2449, 105014), (2821, 91166), (4039, 63674), (4898, 52507), (5642, 45583), (7189, 35774), (7501, 34286), (8078, 31837), (14378, 17887), (15002, 17143)]