256080248

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 521277120

約数和(自身を除く): 265196872

約数列:

[1, 2, 4, 8, 17, 34, 68, 101, 103, 136, 181, 202, 206, 362, 404, 412, 724, 808, 824, 1448, 1717, 1751, 3077, 3434, 3502, 6154, 6868, 7004, 10403, 12308, 13736, 14008, 18281, 18643, 20806, 24616, 36562, 37286, 41612, 73124, 74572, 83224, 146248, 149144, 176851, 310777, 316931, 353702, 621554, 633862, 707404, 1243108, 1267724, 1414808, 1882943, 2486216, 2535448, 3765886, 7531772, 15063544, 32010031, 64020062, 128040124, 256080248]

約数ペア:

[(1, 256080248), (2, 128040124), (4, 64020062), (8, 32010031), (17, 15063544), (34, 7531772), (68, 3765886), (101, 2535448), (103, 2486216), (136, 1882943), (181, 1414808), (202, 1267724), (206, 1243108), (362, 707404), (404, 633862), (412, 621554), (724, 353702), (808, 316931), (824, 310777), (1448, 176851), (1717, 149144), (1751, 146248), (3077, 83224), (3434, 74572), (3502, 73124), (6154, 41612), (6868, 37286), (7004, 36562), (10403, 24616), (12308, 20806), (13736, 18643), (14008, 18281)]