257180928

素因数分解:

$2^8\times 3^1\times {\mathrm{257}}^1\times {\mathrm{1303}}^1$

素因数の和:1579

約数の個数: 72

約数和(自身を含む): 687667008

約数和(自身を除く): 430486080

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 257, 384, 514, 768, 771, 1028, 1303, 1542, 2056, 2606, 3084, 3909, 4112, 5212, 6168, 7818, 8224, 10424, 12336, 15636, 16448, 20848, 24672, 31272, 32896, 41696, 49344, 62544, 65792, 83392, 98688, 125088, 166784, 197376, 250176, 333568, 334871, 500352, 669742, 1000704, 1004613, 1339484, 2009226, 2678968, 4018452, 5357936, 8036904, 10715872, 16073808, 21431744, 32147616, 42863488, 64295232, 85726976, 128590464, 257180928]

約数ペア:

[(1, 257180928), (2, 128590464), (3, 85726976), (4, 64295232), (6, 42863488), (8, 32147616), (12, 21431744), (16, 16073808), (24, 10715872), (32, 8036904), (48, 5357936), (64, 4018452), (96, 2678968), (128, 2009226), (192, 1339484), (256, 1004613), (257, 1000704), (384, 669742), (514, 500352), (768, 334871), (771, 333568), (1028, 250176), (1303, 197376), (1542, 166784), (2056, 125088), (2606, 98688), (3084, 83392), (3909, 65792), (4112, 62544), (5212, 49344), (6168, 41696), (7818, 32896), (8224, 31272), (10424, 24672), (12336, 20848), (15636, 16448)]