261711424

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 112

約数和(自身を含む): 589442560

約数和(自身を除く): 327731136

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 73, 104, 124, 139, 146, 208, 248, 278, 292, 403, 416, 496, 556, 584, 806, 832, 949, 992, 1112, 1168, 1612, 1807, 1898, 1984, 2224, 2263, 2336, 3224, 3614, 3796, 4309, 4448, 4526, 4672, 6448, 7228, 7592, 8618, 8896, 9052, 10147, 12896, 14456, 15184, 17236, 18104, 20294, 25792, 28912, 29419, 30368, 34472, 36208, 40588, 56017, 57824, 58838, 60736, 68944, 72416, 81176, 112034, 115648, 117676, 131911, 137888, 144832, 162352, 224068, 235352, 263822, 275776, 314557, 324704, 448136, 470704, 527644, 629114, 649408, 896272, 941408, 1055288, 1258228, 1792544, 1882816, 2110576, 2516456, 3585088, 4089241, 4221152, 5032912, 8178482, 8442304, 10065824, 16356964, 20131648, 32713928, 65427856, 130855712, 261711424]

約数ペア:

[(1, 261711424), (2, 130855712), (4, 65427856), (8, 32713928), (13, 20131648), (16, 16356964), (26, 10065824), (31, 8442304), (32, 8178482), (52, 5032912), (62, 4221152), (64, 4089241), (73, 3585088), (104, 2516456), (124, 2110576), (139, 1882816), (146, 1792544), (208, 1258228), (248, 1055288), (278, 941408), (292, 896272), (403, 649408), (416, 629114), (496, 527644), (556, 470704), (584, 448136), (806, 324704), (832, 314557), (949, 275776), (992, 263822), (1112, 235352), (1168, 224068), (1612, 162352), (1807, 144832), (1898, 137888), (1984, 131911), (2224, 117676), (2263, 115648), (2336, 112034), (3224, 81176), (3614, 72416), (3796, 68944), (4309, 60736), (4448, 58838), (4526, 57824), (4672, 56017), (6448, 40588), (7228, 36208), (7592, 34472), (8618, 30368), (8896, 29419), (9052, 28912), (10147, 25792), (12896, 20294), (14456, 18104), (15184, 17236)]