257763636

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 735454720

約数和(自身を除く): 477691084

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 109, 117, 124, 156, 163, 186, 218, 234, 279, 326, 327, 372, 403, 436, 468, 489, 558, 652, 654, 806, 978, 981, 1116, 1209, 1308, 1417, 1467, 1612, 1956, 1962, 2119, 2418, 2834, 2934, 3379, 3627, 3924, 4238, 4251, 4836, 5053, 5668, 5868, 6357, 6758, 7254, 8476, 8502, 10106, 10137, 12714, 12753, 13516, 14508, 15159, 17004, 17767, 19071, 20212, 20274, 25428, 25506, 30318, 30411, 35534, 38142, 40548, 43927, 45477, 51012, 53301, 60636, 60822, 65689, 71068, 76284, 87854, 90954, 106602, 121644, 131378, 131781, 159903, 175708, 181908, 197067, 213204, 230971, 262756, 263562, 319806, 394134, 395343, 461942, 527124, 550777, 591201, 639612, 692913, 788268, 790686, 923884, 1101554, 1182402, 1385826, 1581372, 1652331, 2078739, 2203108, 2364804, 2771652, 3304662, 4157478, 4956993, 6609324, 7160101, 8314956, 9913986, 14320202, 19827972, 21480303, 28640404, 42960606, 64440909, 85921212, 128881818, 257763636]

約数ペア:

[(1, 257763636), (2, 128881818), (3, 85921212), (4, 64440909), (6, 42960606), (9, 28640404), (12, 21480303), (13, 19827972), (18, 14320202), (26, 9913986), (31, 8314956), (36, 7160101), (39, 6609324), (52, 4956993), (62, 4157478), (78, 3304662), (93, 2771652), (109, 2364804), (117, 2203108), (124, 2078739), (156, 1652331), (163, 1581372), (186, 1385826), (218, 1182402), (234, 1101554), (279, 923884), (326, 790686), (327, 788268), (372, 692913), (403, 639612), (436, 591201), (468, 550777), (489, 527124), (558, 461942), (652, 395343), (654, 394134), (806, 319806), (978, 263562), (981, 262756), (1116, 230971), (1209, 213204), (1308, 197067), (1417, 181908), (1467, 175708), (1612, 159903), (1956, 131781), (1962, 131378), (2119, 121644), (2418, 106602), (2834, 90954), (2934, 87854), (3379, 76284), (3627, 71068), (3924, 65689), (4238, 60822), (4251, 60636), (4836, 53301), (5053, 51012), (5668, 45477), (5868, 43927), (6357, 40548), (6758, 38142), (7254, 35534), (8476, 30411), (8502, 30318), (10106, 25506), (10137, 25428), (12714, 20274), (12753, 20212), (13516, 19071), (14508, 17767), (15159, 17004)]