257885264

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4787}}^1$

素因数の和:4852

約数の個数: 80

約数和(自身を含む): 631709568

約数和(自身を除く): 373824304

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 37, 52, 56, 74, 91, 104, 112, 148, 182, 208, 259, 296, 364, 481, 518, 592, 728, 962, 1036, 1456, 1924, 2072, 3367, 3848, 4144, 4787, 6734, 7696, 9574, 13468, 19148, 26936, 33509, 38296, 53872, 62231, 67018, 76592, 124462, 134036, 177119, 248924, 268072, 354238, 435617, 497848, 536144, 708476, 871234, 995696, 1239833, 1416952, 1742468, 2302547, 2479666, 2833904, 3484936, 4605094, 4959332, 6969872, 9210188, 9918664, 16117829, 18420376, 19837328, 32235658, 36840752, 64471316, 128942632, 257885264]

約数ペア:

[(1, 257885264), (2, 128942632), (4, 64471316), (7, 36840752), (8, 32235658), (13, 19837328), (14, 18420376), (16, 16117829), (26, 9918664), (28, 9210188), (37, 6969872), (52, 4959332), (56, 4605094), (74, 3484936), (91, 2833904), (104, 2479666), (112, 2302547), (148, 1742468), (182, 1416952), (208, 1239833), (259, 995696), (296, 871234), (364, 708476), (481, 536144), (518, 497848), (592, 435617), (728, 354238), (962, 268072), (1036, 248924), (1456, 177119), (1924, 134036), (2072, 124462), (3367, 76592), (3848, 67018), (4144, 62231), (4787, 53872), (6734, 38296), (7696, 33509), (9574, 26936), (13468, 19148)]