251519944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 519321600

約数和(自身を除く): 267801656

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 137, 139, 254, 274, 278, 508, 548, 556, 1016, 1096, 1112, 1651, 1781, 1807, 3302, 3562, 3614, 6604, 7124, 7228, 13208, 14248, 14456, 17399, 17653, 19043, 34798, 35306, 38086, 69596, 70612, 76172, 139192, 141224, 152344, 226187, 229489, 247559, 452374, 458978, 495118, 904748, 917956, 990236, 1809496, 1835912, 1980472, 2418461, 4836922, 9673844, 19347688, 31439993, 62879986, 125759972, 251519944]

約数ペア:

[(1, 251519944), (2, 125759972), (4, 62879986), (8, 31439993), (13, 19347688), (26, 9673844), (52, 4836922), (104, 2418461), (127, 1980472), (137, 1835912), (139, 1809496), (254, 990236), (274, 917956), (278, 904748), (508, 495118), (548, 458978), (556, 452374), (1016, 247559), (1096, 229489), (1112, 226187), (1651, 152344), (1781, 141224), (1807, 139192), (3302, 76172), (3562, 70612), (3614, 69596), (6604, 38086), (7124, 35306), (7228, 34798), (13208, 19043), (14248, 17653), (14456, 17399)]