251207280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:328

約数の個数: 240

約数和(自身を含む): 893112480

約数和(自身を除く): 641905200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 53, 58, 60, 72, 80, 87, 90, 106, 116, 120, 144, 145, 159, 174, 180, 212, 227, 232, 240, 261, 265, 290, 318, 348, 360, 424, 435, 454, 464, 477, 522, 530, 580, 636, 681, 696, 720, 795, 848, 870, 908, 954, 1044, 1060, 1135, 1160, 1272, 1305, 1362, 1392, 1537, 1590, 1740, 1816, 1908, 2043, 2088, 2120, 2270, 2320, 2385, 2544, 2610, 2724, 3074, 3180, 3405, 3480, 3632, 3816, 4086, 4176, 4240, 4540, 4611, 4770, 5220, 5448, 6148, 6360, 6583, 6810, 6960, 7632, 7685, 8172, 9080, 9222, 9540, 10215, 10440, 10896, 12031, 12296, 12720, 13166, 13620, 13833, 15370, 16344, 18160, 18444, 19080, 19749, 20430, 20880, 23055, 24062, 24592, 26332, 27240, 27666, 30740, 32688, 32915, 36093, 36888, 38160, 39498, 40860, 46110, 48124, 52664, 54480, 55332, 59247, 60155, 61480, 65830, 69165, 72186, 73776, 78996, 81720, 92220, 96248, 98745, 105328, 108279, 110664, 118494, 120310, 122960, 131660, 138330, 144372, 157992, 163440, 180465, 184440, 192496, 197490, 216558, 221328, 236988, 240620, 263320, 276660, 288744, 296235, 315984, 348899, 360930, 368880, 394980, 433116, 473976, 481240, 526640, 541395, 553320, 577488, 592470, 697798, 721860, 789960, 866232, 947952, 962480, 1046697, 1082790, 1106640, 1184940, 1395596, 1443720, 1579920, 1732464, 1744495, 2093394, 2165580, 2369880, 2791192, 2887440, 3140091, 3488990, 4186788, 4331160, 4739760, 5233485, 5582384, 6280182, 6977980, 8373576, 8662320, 10466970, 12560364, 13955960, 15700455, 16747152, 20933940, 25120728, 27911920, 31400910, 41867880, 50241456, 62801820, 83735760, 125603640, 251207280]

約数ペア:

[(1, 251207280), (2, 125603640), (3, 83735760), (4, 62801820), (5, 50241456), (6, 41867880), (8, 31400910), (9, 27911920), (10, 25120728), (12, 20933940), (15, 16747152), (16, 15700455), (18, 13955960), (20, 12560364), (24, 10466970), (29, 8662320), (30, 8373576), (36, 6977980), (40, 6280182), (45, 5582384), (48, 5233485), (53, 4739760), (58, 4331160), (60, 4186788), (72, 3488990), (80, 3140091), (87, 2887440), (90, 2791192), (106, 2369880), (116, 2165580), (120, 2093394), (144, 1744495), (145, 1732464), (159, 1579920), (174, 1443720), (180, 1395596), (212, 1184940), (227, 1106640), (232, 1082790), (240, 1046697), (261, 962480), (265, 947952), (290, 866232), (318, 789960), (348, 721860), (360, 697798), (424, 592470), (435, 577488), (454, 553320), (464, 541395), (477, 526640), (522, 481240), (530, 473976), (580, 433116), (636, 394980), (681, 368880), (696, 360930), (720, 348899), (795, 315984), (848, 296235), (870, 288744), (908, 276660), (954, 263320), (1044, 240620), (1060, 236988), (1135, 221328), (1160, 216558), (1272, 197490), (1305, 192496), (1362, 184440), (1392, 180465), (1537, 163440), (1590, 157992), (1740, 144372), (1816, 138330), (1908, 131660), (2043, 122960), (2088, 120310), (2120, 118494), (2270, 110664), (2320, 108279), (2385, 105328), (2544, 98745), (2610, 96248), (2724, 92220), (3074, 81720), (3180, 78996), (3405, 73776), (3480, 72186), (3632, 69165), (3816, 65830), (4086, 61480), (4176, 60155), (4240, 59247), (4540, 55332), (4611, 54480), (4770, 52664), (5220, 48124), (5448, 46110), (6148, 40860), (6360, 39498), (6583, 38160), (6810, 36888), (6960, 36093), (7632, 32915), (7685, 32688), (8172, 30740), (9080, 27666), (9222, 27240), (9540, 26332), (10215, 24592), (10440, 24062), (10896, 23055), (12031, 20880), (12296, 20430), (12720, 19749), (13166, 19080), (13620, 18444), (13833, 18160), (15370, 16344)]