257005980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{883}}^1$

素因数の和:926

約数の個数: 288

約数和(自身を含む): 1015822080

約数和(自身を除く): 758816100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 49, 54, 55, 60, 63, 66, 70, 77, 84, 90, 98, 99, 105, 108, 110, 126, 132, 135, 140, 147, 154, 165, 180, 189, 196, 198, 210, 220, 231, 245, 252, 270, 294, 297, 308, 315, 330, 378, 385, 396, 420, 441, 462, 490, 495, 539, 540, 588, 594, 630, 660, 693, 735, 756, 770, 882, 883, 924, 945, 980, 990, 1078, 1155, 1188, 1260, 1323, 1386, 1470, 1485, 1540, 1617, 1764, 1766, 1890, 1980, 2079, 2156, 2205, 2310, 2646, 2649, 2695, 2772, 2940, 2970, 3234, 3465, 3532, 3780, 4158, 4410, 4415, 4620, 4851, 5292, 5298, 5390, 5940, 6181, 6468, 6615, 6930, 7947, 8085, 8316, 8820, 8830, 9702, 9713, 10395, 10596, 10780, 12362, 13230, 13245, 13860, 14553, 15894, 16170, 17660, 18543, 19404, 19426, 20790, 23841, 24255, 24724, 26460, 26490, 29106, 29139, 30905, 31788, 32340, 37086, 38852, 39735, 41580, 43267, 47682, 48510, 48565, 52980, 55629, 58212, 58278, 61810, 67991, 72765, 74172, 79470, 86534, 87417, 92715, 95364, 97020, 97130, 111258, 116556, 119205, 123620, 129801, 135982, 145530, 145695, 158940, 166887, 173068, 174834, 185430, 194260, 203973, 216335, 222516, 238410, 259602, 262251, 271964, 278145, 291060, 291390, 333774, 339955, 349668, 370860, 389403, 407946, 432670, 437085, 475937, 476820, 519204, 524502, 556290, 582780, 611919, 649005, 667548, 679910, 778806, 815892, 834435, 865340, 874170, 951874, 1019865, 1049004, 1112580, 1168209, 1223838, 1298010, 1311255, 1359820, 1427811, 1557612, 1668870, 1748340, 1835757, 1903748, 1947015, 2039730, 2336418, 2379685, 2447676, 2596020, 2622510, 2855622, 3059595, 3337740, 3671514, 3894030, 4079460, 4283433, 4672836, 4759370, 5245020, 5711244, 5841045, 6119190, 7139055, 7343028, 7788060, 8566866, 9178785, 9518740, 11682090, 12238380, 12850299, 14278110, 17133732, 18357570, 21417165, 23364180, 25700598, 28556220, 36715140, 42834330, 51401196, 64251495, 85668660, 128502990, 257005980]

約数ペア:

[(1, 257005980), (2, 128502990), (3, 85668660), (4, 64251495), (5, 51401196), (6, 42834330), (7, 36715140), (9, 28556220), (10, 25700598), (11, 23364180), (12, 21417165), (14, 18357570), (15, 17133732), (18, 14278110), (20, 12850299), (21, 12238380), (22, 11682090), (27, 9518740), (28, 9178785), (30, 8566866), (33, 7788060), (35, 7343028), (36, 7139055), (42, 6119190), (44, 5841045), (45, 5711244), (49, 5245020), (54, 4759370), (55, 4672836), (60, 4283433), (63, 4079460), (66, 3894030), (70, 3671514), (77, 3337740), (84, 3059595), (90, 2855622), (98, 2622510), (99, 2596020), (105, 2447676), (108, 2379685), (110, 2336418), (126, 2039730), (132, 1947015), (135, 1903748), (140, 1835757), (147, 1748340), (154, 1668870), (165, 1557612), (180, 1427811), (189, 1359820), (196, 1311255), (198, 1298010), (210, 1223838), (220, 1168209), (231, 1112580), (245, 1049004), (252, 1019865), (270, 951874), (294, 874170), (297, 865340), (308, 834435), (315, 815892), (330, 778806), (378, 679910), (385, 667548), (396, 649005), (420, 611919), (441, 582780), (462, 556290), (490, 524502), (495, 519204), (539, 476820), (540, 475937), (588, 437085), (594, 432670), (630, 407946), (660, 389403), (693, 370860), (735, 349668), (756, 339955), (770, 333774), (882, 291390), (883, 291060), (924, 278145), (945, 271964), (980, 262251), (990, 259602), (1078, 238410), (1155, 222516), (1188, 216335), (1260, 203973), (1323, 194260), (1386, 185430), (1470, 174834), (1485, 173068), (1540, 166887), (1617, 158940), (1764, 145695), (1766, 145530), (1890, 135982), (1980, 129801), (2079, 123620), (2156, 119205), (2205, 116556), (2310, 111258), (2646, 97130), (2649, 97020), (2695, 95364), (2772, 92715), (2940, 87417), (2970, 86534), (3234, 79470), (3465, 74172), (3532, 72765), (3780, 67991), (4158, 61810), (4410, 58278), (4415, 58212), (4620, 55629), (4851, 52980), (5292, 48565), (5298, 48510), (5390, 47682), (5940, 43267), (6181, 41580), (6468, 39735), (6615, 38852), (6930, 37086), (7947, 32340), (8085, 31788), (8316, 30905), (8820, 29139), (8830, 29106), (9702, 26490), (9713, 26460), (10395, 24724), (10596, 24255), (10780, 23841), (12362, 20790), (13230, 19426), (13245, 19404), (13860, 18543), (14553, 17660), (15894, 16170)]