1261990366

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 2367792000

約数和(自身を除く): 1105801634

約数列:

[1, 2, 7, 13, 14, 26, 91, 149, 173, 182, 269, 298, 346, 538, 1043, 1211, 1883, 1937, 2086, 2249, 2422, 3497, 3766, 3874, 4498, 6994, 13559, 15743, 24479, 25777, 27118, 31486, 40081, 46537, 48958, 51554, 80162, 93074, 180439, 280567, 325759, 335101, 360878, 521053, 561134, 604981, 651518, 670202, 1042106, 1209962, 2345707, 3647371, 4234867, 4691414, 6934013, 7294742, 8469734, 13868026, 48538091, 90142169, 97076182, 180284338, 630995183, 1261990366]

約数ペア:

[(1, 1261990366), (2, 630995183), (7, 180284338), (13, 97076182), (14, 90142169), (26, 48538091), (91, 13868026), (149, 8469734), (173, 7294742), (182, 6934013), (269, 4691414), (298, 4234867), (346, 3647371), (538, 2345707), (1043, 1209962), (1211, 1042106), (1883, 670202), (1937, 651518), (2086, 604981), (2249, 561134), (2422, 521053), (3497, 360878), (3766, 335101), (3874, 325759), (4498, 280567), (6994, 180439), (13559, 93074), (15743, 80162), (24479, 51554), (25777, 48958), (27118, 46537), (31486, 40081)]