256129276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 539360640

約数和(自身を除く): 283231364

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 97, 103, 116, 194, 206, 221, 377, 388, 412, 442, 493, 754, 884, 986, 1261, 1339, 1508, 1649, 1751, 1972, 2522, 2678, 2813, 2987, 3298, 3502, 5044, 5356, 5626, 5974, 6409, 6596, 7004, 9991, 11252, 11948, 12818, 19982, 21437, 22763, 25636, 36569, 38831, 39964, 42874, 45526, 47821, 50779, 73138, 77662, 85748, 91052, 95642, 101558, 129883, 146276, 155324, 169847, 191284, 203116, 259766, 289739, 339694, 519532, 579478, 621673, 660127, 679388, 1158956, 1243346, 1320254, 2208011, 2486692, 2640508, 3766607, 4416022, 4925563, 7533214, 8832044, 9851126, 15066428, 19702252, 64032319, 128064638, 256129276]

約数ペア:

[(1, 256129276), (2, 128064638), (4, 64032319), (13, 19702252), (17, 15066428), (26, 9851126), (29, 8832044), (34, 7533214), (52, 4925563), (58, 4416022), (68, 3766607), (97, 2640508), (103, 2486692), (116, 2208011), (194, 1320254), (206, 1243346), (221, 1158956), (377, 679388), (388, 660127), (412, 621673), (442, 579478), (493, 519532), (754, 339694), (884, 289739), (986, 259766), (1261, 203116), (1339, 191284), (1508, 169847), (1649, 155324), (1751, 146276), (1972, 129883), (2522, 101558), (2678, 95642), (2813, 91052), (2987, 85748), (3298, 77662), (3502, 73138), (5044, 50779), (5356, 47821), (5626, 45526), (5974, 42874), (6409, 39964), (6596, 38831), (7004, 36569), (9991, 25636), (11252, 22763), (11948, 21437), (12818, 19982)]