278488980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:387

約数の個数: 288

約数和(自身を含む): 1071802368

約数和(自身を除く): 793313388

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 71, 77, 84, 90, 99, 105, 110, 126, 132, 140, 142, 154, 165, 180, 198, 210, 213, 220, 231, 252, 283, 284, 308, 315, 330, 355, 385, 396, 420, 426, 462, 495, 497, 566, 630, 639, 660, 693, 710, 770, 781, 849, 852, 924, 990, 994, 1065, 1132, 1155, 1260, 1278, 1386, 1415, 1420, 1491, 1540, 1562, 1698, 1980, 1981, 1988, 2130, 2310, 2343, 2485, 2547, 2556, 2772, 2830, 2982, 3113, 3124, 3195, 3396, 3465, 3905, 3962, 4245, 4260, 4473, 4620, 4686, 4970, 5094, 5467, 5660, 5943, 5964, 6226, 6390, 6930, 7029, 7455, 7810, 7924, 8490, 8946, 9339, 9372, 9905, 9940, 10188, 10934, 11715, 11886, 12452, 12735, 12780, 13860, 14058, 14910, 15565, 15620, 16401, 16980, 17829, 17892, 18678, 19810, 20093, 21791, 21868, 22365, 23430, 23772, 25470, 27335, 28017, 28116, 29715, 29820, 31130, 32802, 35145, 35658, 37356, 39620, 40186, 43582, 44730, 46695, 46860, 49203, 50940, 54670, 56034, 59430, 60279, 62260, 65373, 65604, 70290, 71316, 80372, 82005, 87164, 89145, 89460, 93390, 98406, 100465, 108955, 109340, 112068, 118860, 120558, 130746, 140085, 140580, 140651, 164010, 178290, 180837, 186780, 196119, 196812, 200930, 217910, 221023, 241116, 246015, 261492, 280170, 281302, 301395, 326865, 328020, 356580, 361674, 392238, 401860, 421953, 435820, 442046, 492030, 560340, 562604, 602790, 653730, 663069, 703255, 723348, 784476, 843906, 884092, 904185, 980595, 984060, 1105115, 1205580, 1265859, 1307460, 1326138, 1406510, 1547161, 1687812, 1808370, 1961190, 1989207, 2109765, 2210230, 2531718, 2652276, 2813020, 3094322, 3315345, 3616740, 3922380, 3978414, 4219530, 4420460, 4641483, 5063436, 6188644, 6329295, 6630690, 7735805, 7956828, 8439060, 9282966, 9946035, 12658590, 13261380, 13924449, 15471610, 18565932, 19892070, 23207415, 25317180, 27848898, 30943220, 39784140, 46414830, 55697796, 69622245, 92829660, 139244490, 278488980]

約数ペア:

[(1, 278488980), (2, 139244490), (3, 92829660), (4, 69622245), (5, 55697796), (6, 46414830), (7, 39784140), (9, 30943220), (10, 27848898), (11, 25317180), (12, 23207415), (14, 19892070), (15, 18565932), (18, 15471610), (20, 13924449), (21, 13261380), (22, 12658590), (28, 9946035), (30, 9282966), (33, 8439060), (35, 7956828), (36, 7735805), (42, 6630690), (44, 6329295), (45, 6188644), (55, 5063436), (60, 4641483), (63, 4420460), (66, 4219530), (70, 3978414), (71, 3922380), (77, 3616740), (84, 3315345), (90, 3094322), (99, 2813020), (105, 2652276), (110, 2531718), (126, 2210230), (132, 2109765), (140, 1989207), (142, 1961190), (154, 1808370), (165, 1687812), (180, 1547161), (198, 1406510), (210, 1326138), (213, 1307460), (220, 1265859), (231, 1205580), (252, 1105115), (283, 984060), (284, 980595), (308, 904185), (315, 884092), (330, 843906), (355, 784476), (385, 723348), (396, 703255), (420, 663069), (426, 653730), (462, 602790), (495, 562604), (497, 560340), (566, 492030), (630, 442046), (639, 435820), (660, 421953), (693, 401860), (710, 392238), (770, 361674), (781, 356580), (849, 328020), (852, 326865), (924, 301395), (990, 281302), (994, 280170), (1065, 261492), (1132, 246015), (1155, 241116), (1260, 221023), (1278, 217910), (1386, 200930), (1415, 196812), (1420, 196119), (1491, 186780), (1540, 180837), (1562, 178290), (1698, 164010), (1980, 140651), (1981, 140580), (1988, 140085), (2130, 130746), (2310, 120558), (2343, 118860), (2485, 112068), (2547, 109340), (2556, 108955), (2772, 100465), (2830, 98406), (2982, 93390), (3113, 89460), (3124, 89145), (3195, 87164), (3396, 82005), (3465, 80372), (3905, 71316), (3962, 70290), (4245, 65604), (4260, 65373), (4473, 62260), (4620, 60279), (4686, 59430), (4970, 56034), (5094, 54670), (5467, 50940), (5660, 49203), (5943, 46860), (5964, 46695), (6226, 44730), (6390, 43582), (6930, 40186), (7029, 39620), (7455, 37356), (7810, 35658), (7924, 35145), (8490, 32802), (8946, 31130), (9339, 29820), (9372, 29715), (9905, 28116), (9940, 28017), (10188, 27335), (10934, 25470), (11715, 23772), (11886, 23430), (12452, 22365), (12735, 21868), (12780, 21791), (13860, 20093), (14058, 19810), (14910, 18678), (15565, 17892), (15620, 17829), (16401, 16980)]