261064144

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{811}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 579962880

約数和(自身を除く): 318898736

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 59, 62, 88, 118, 124, 176, 236, 248, 341, 472, 496, 649, 682, 811, 944, 1298, 1364, 1622, 1829, 2596, 2728, 3244, 3658, 5192, 5456, 6488, 7316, 8921, 10384, 12976, 14632, 17842, 20119, 25141, 29264, 35684, 40238, 47849, 50282, 71368, 80476, 95698, 100564, 142736, 160952, 191396, 201128, 276551, 321904, 382792, 402256, 526339, 553102, 765584, 1052678, 1106204, 1483319, 2105356, 2212408, 2966638, 4210712, 4424816, 5933276, 8421424, 11866552, 16316509, 23733104, 32633018, 65266036, 130532072, 261064144]

約数ペア:

[(1, 261064144), (2, 130532072), (4, 65266036), (8, 32633018), (11, 23733104), (16, 16316509), (22, 11866552), (31, 8421424), (44, 5933276), (59, 4424816), (62, 4210712), (88, 2966638), (118, 2212408), (124, 2105356), (176, 1483319), (236, 1106204), (248, 1052678), (341, 765584), (472, 553102), (496, 526339), (649, 402256), (682, 382792), (811, 321904), (944, 276551), (1298, 201128), (1364, 191396), (1622, 160952), (1829, 142736), (2596, 100564), (2728, 95698), (3244, 80476), (3658, 71368), (5192, 50282), (5456, 47849), (6488, 40238), (7316, 35684), (8921, 29264), (10384, 25141), (12976, 20119), (14632, 17842)]