257014784

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:525

約数の個数: 88

約数和(自身を含む): 567428400

約数和(自身を除く): 310413616

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 256, 344, 416, 449, 512, 559, 688, 832, 898, 1024, 1118, 1376, 1664, 1796, 2236, 2752, 3328, 3592, 4472, 5504, 5837, 6656, 7184, 8944, 11008, 11674, 13312, 14368, 17888, 19307, 22016, 23348, 28736, 35776, 38614, 44032, 46696, 57472, 71552, 77228, 93392, 114944, 143104, 154456, 186784, 229888, 250991, 286208, 308912, 373568, 459776, 501982, 572416, 617824, 747136, 1003964, 1235648, 1494272, 2007928, 2471296, 2988544, 4015856, 4942592, 5977088, 8031712, 9885184, 16063424, 19770368, 32126848, 64253696, 128507392, 257014784]

約数ペア:

[(1, 257014784), (2, 128507392), (4, 64253696), (8, 32126848), (13, 19770368), (16, 16063424), (26, 9885184), (32, 8031712), (43, 5977088), (52, 4942592), (64, 4015856), (86, 2988544), (104, 2471296), (128, 2007928), (172, 1494272), (208, 1235648), (256, 1003964), (344, 747136), (416, 617824), (449, 572416), (512, 501982), (559, 459776), (688, 373568), (832, 308912), (898, 286208), (1024, 250991), (1118, 229888), (1376, 186784), (1664, 154456), (1796, 143104), (2236, 114944), (2752, 93392), (3328, 77228), (3592, 71552), (4472, 57472), (5504, 46696), (5837, 44032), (6656, 38614), (7184, 35776), (8944, 28736), (11008, 23348), (11674, 22016), (13312, 19307), (14368, 17888)]