253411312

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2126

約数の個数: 80

約数和(自身を含む): 618388992

約数和(自身を除く): 364977680

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 103, 112, 154, 176, 206, 308, 412, 616, 721, 824, 1133, 1232, 1442, 1648, 1997, 2266, 2884, 3994, 4532, 5768, 7931, 7988, 9064, 11536, 13979, 15862, 15976, 18128, 21967, 27958, 31724, 31952, 43934, 55916, 63448, 87868, 111832, 126896, 153769, 175736, 205691, 223664, 307538, 351472, 411382, 615076, 822764, 1230152, 1439837, 1645528, 2262601, 2460304, 2879674, 3291056, 4525202, 5759348, 9050404, 11518696, 15838207, 18100808, 23037392, 31676414, 36201616, 63352828, 126705656, 253411312]

約数ペア:

[(1, 253411312), (2, 126705656), (4, 63352828), (7, 36201616), (8, 31676414), (11, 23037392), (14, 18100808), (16, 15838207), (22, 11518696), (28, 9050404), (44, 5759348), (56, 4525202), (77, 3291056), (88, 2879674), (103, 2460304), (112, 2262601), (154, 1645528), (176, 1439837), (206, 1230152), (308, 822764), (412, 615076), (616, 411382), (721, 351472), (824, 307538), (1133, 223664), (1232, 205691), (1442, 175736), (1648, 153769), (1997, 126896), (2266, 111832), (2884, 87868), (3994, 63448), (4532, 55916), (5768, 43934), (7931, 31952), (7988, 31724), (9064, 27958), (11536, 21967), (13979, 18128), (15862, 15976)]