257949328

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{25309}}^1$

素因数の和:25344

約数の個数: 60

約数和(自身を含む): 626118780

約数和(自身を除く): 368169452

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2548, 5096, 10192, 25309, 50618, 101236, 177163, 202472, 329017, 354326, 404944, 658034, 708652, 1240141, 1316068, 1417304, 2303119, 2480282, 2632136, 2834608, 4606238, 4960564, 5264272, 9212476, 9921128, 16121833, 18424952, 19842256, 32243666, 36849904, 64487332, 128974664, 257949328]

約数ペア:

[(1, 257949328), (2, 128974664), (4, 64487332), (7, 36849904), (8, 32243666), (13, 19842256), (14, 18424952), (16, 16121833), (26, 9921128), (28, 9212476), (49, 5264272), (52, 4960564), (56, 4606238), (91, 2834608), (98, 2632136), (104, 2480282), (112, 2303119), (182, 1417304), (196, 1316068), (208, 1240141), (364, 708652), (392, 658034), (637, 404944), (728, 354326), (784, 329017), (1274, 202472), (1456, 177163), (2548, 101236), (5096, 50618), (10192, 25309)]