280108080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:548

約数の個数: 240

約数和(自身を含む): 1085198400

約数和(自身を除く): 805090320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 149, 168, 180, 210, 240, 252, 280, 298, 315, 336, 360, 373, 420, 447, 504, 560, 596, 630, 720, 745, 746, 840, 894, 1008, 1043, 1119, 1192, 1260, 1341, 1490, 1492, 1680, 1788, 1865, 2086, 2235, 2238, 2384, 2520, 2611, 2682, 2980, 2984, 3129, 3357, 3576, 3730, 4172, 4470, 4476, 5040, 5215, 5222, 5364, 5595, 5960, 5968, 6258, 6705, 6714, 7152, 7460, 7833, 8344, 8940, 8952, 9387, 10430, 10444, 10728, 11190, 11920, 12516, 13055, 13410, 13428, 14920, 15645, 15666, 16688, 16785, 17880, 17904, 18774, 20860, 20888, 21456, 22380, 23499, 25032, 26110, 26820, 26856, 29840, 31290, 31332, 33570, 35760, 37548, 39165, 41720, 41776, 44760, 46935, 46998, 50064, 52220, 53640, 53712, 55577, 62580, 62664, 67140, 75096, 78330, 83440, 89520, 93870, 93996, 104440, 107280, 111154, 117495, 125160, 125328, 134280, 150192, 156660, 166731, 187740, 187992, 208880, 222308, 234990, 250320, 268560, 277885, 313320, 333462, 375480, 375984, 389039, 444616, 469980, 500193, 555770, 626640, 666924, 750960, 778078, 833655, 889232, 939960, 1000386, 1111540, 1167117, 1333848, 1556156, 1667310, 1879920, 1945195, 2000772, 2223080, 2334234, 2500965, 2667696, 3112312, 3334620, 3501351, 3890390, 4001544, 4446160, 4668468, 5001930, 5835585, 6224624, 6669240, 7002702, 7780780, 8003088, 9336936, 10003860, 11671170, 13338480, 14005404, 15561560, 17506755, 18673872, 20007720, 23342340, 28010808, 31123120, 35013510, 40015440, 46684680, 56021616, 70027020, 93369360, 140054040, 280108080]

約数ペア:

[(1, 280108080), (2, 140054040), (3, 93369360), (4, 70027020), (5, 56021616), (6, 46684680), (7, 40015440), (8, 35013510), (9, 31123120), (10, 28010808), (12, 23342340), (14, 20007720), (15, 18673872), (16, 17506755), (18, 15561560), (20, 14005404), (21, 13338480), (24, 11671170), (28, 10003860), (30, 9336936), (35, 8003088), (36, 7780780), (40, 7002702), (42, 6669240), (45, 6224624), (48, 5835585), (56, 5001930), (60, 4668468), (63, 4446160), (70, 4001544), (72, 3890390), (80, 3501351), (84, 3334620), (90, 3112312), (105, 2667696), (112, 2500965), (120, 2334234), (126, 2223080), (140, 2000772), (144, 1945195), (149, 1879920), (168, 1667310), (180, 1556156), (210, 1333848), (240, 1167117), (252, 1111540), (280, 1000386), (298, 939960), (315, 889232), (336, 833655), (360, 778078), (373, 750960), (420, 666924), (447, 626640), (504, 555770), (560, 500193), (596, 469980), (630, 444616), (720, 389039), (745, 375984), (746, 375480), (840, 333462), (894, 313320), (1008, 277885), (1043, 268560), (1119, 250320), (1192, 234990), (1260, 222308), (1341, 208880), (1490, 187992), (1492, 187740), (1680, 166731), (1788, 156660), (1865, 150192), (2086, 134280), (2235, 125328), (2238, 125160), (2384, 117495), (2520, 111154), (2611, 107280), (2682, 104440), (2980, 93996), (2984, 93870), (3129, 89520), (3357, 83440), (3576, 78330), (3730, 75096), (4172, 67140), (4470, 62664), (4476, 62580), (5040, 55577), (5215, 53712), (5222, 53640), (5364, 52220), (5595, 50064), (5960, 46998), (5968, 46935), (6258, 44760), (6705, 41776), (6714, 41720), (7152, 39165), (7460, 37548), (7833, 35760), (8344, 33570), (8940, 31332), (8952, 31290), (9387, 29840), (10430, 26856), (10444, 26820), (10728, 26110), (11190, 25032), (11920, 23499), (12516, 22380), (13055, 21456), (13410, 20888), (13428, 20860), (14920, 18774), (15645, 17904), (15666, 17880), (16688, 16785)]