257938252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10487}}^1$

素因数の和:10558

約数の個数: 48

約数和(自身を含む): 542691072

約数和(自身を除く): 284752820

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 143, 172, 286, 473, 559, 572, 946, 1118, 1892, 2236, 6149, 10487, 12298, 20974, 24596, 41948, 115357, 136331, 230714, 272662, 450941, 461428, 545324, 901882, 1499641, 1803764, 2999282, 4960351, 5862233, 5998564, 9920702, 11724466, 19841404, 23448932, 64484563, 128969126, 257938252]

約数ペア:

[(1, 257938252), (2, 128969126), (4, 64484563), (11, 23448932), (13, 19841404), (22, 11724466), (26, 9920702), (43, 5998564), (44, 5862233), (52, 4960351), (86, 2999282), (143, 1803764), (172, 1499641), (286, 901882), (473, 545324), (559, 461428), (572, 450941), (946, 272662), (1118, 230714), (1892, 136331), (2236, 115357), (6149, 41948), (10487, 24596), (12298, 20974)]