257429404

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 493516800

約数和(自身を除く): 236087396

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 271, 431, 542, 551, 862, 1084, 1102, 1724, 2204, 5149, 7859, 8189, 10298, 12499, 15718, 16378, 20596, 24998, 31436, 32756, 49996, 116801, 149321, 233602, 237481, 298642, 467204, 474962, 597284, 949924, 2219219, 3387229, 4438438, 6774458, 8876876, 13548916, 64357351, 128714702, 257429404]

約数ペア:

[(1, 257429404), (2, 128714702), (4, 64357351), (19, 13548916), (29, 8876876), (38, 6774458), (58, 4438438), (76, 3387229), (116, 2219219), (271, 949924), (431, 597284), (542, 474962), (551, 467204), (862, 298642), (1084, 237481), (1102, 233602), (1724, 149321), (2204, 116801), (5149, 49996), (7859, 32756), (8189, 31436), (10298, 24998), (12499, 20596), (15718, 16378)]