128191680

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:464

約数の個数: 224

約数和(自身を含む): 465612480

約数和(自身を除く): 337420800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 64, 72, 74, 80, 90, 96, 108, 111, 120, 135, 144, 148, 160, 180, 185, 192, 216, 222, 240, 270, 288, 296, 320, 333, 360, 370, 401, 432, 444, 480, 540, 555, 576, 592, 666, 720, 740, 802, 864, 888, 960, 999, 1080, 1110, 1184, 1203, 1332, 1440, 1480, 1604, 1665, 1728, 1776, 1998, 2005, 2160, 2220, 2368, 2406, 2664, 2880, 2960, 3208, 3330, 3552, 3609, 3996, 4010, 4320, 4440, 4812, 4995, 5328, 5920, 6015, 6416, 6660, 7104, 7218, 7992, 8020, 8640, 8880, 9624, 9990, 10656, 10827, 11840, 12030, 12832, 13320, 14436, 14837, 15984, 16040, 17760, 18045, 19248, 19980, 21312, 21654, 24060, 25664, 26640, 28872, 29674, 31968, 32080, 35520, 36090, 38496, 39960, 43308, 44511, 48120, 53280, 54135, 57744, 59348, 63936, 64160, 72180, 74185, 76992, 79920, 86616, 89022, 96240, 106560, 108270, 115488, 118696, 128320, 133533, 144360, 148370, 159840, 173232, 178044, 192480, 216540, 222555, 230976, 237392, 267066, 288720, 296740, 319680, 346464, 356088, 384960, 400599, 433080, 445110, 474784, 534132, 577440, 593480, 667665, 692928, 712176, 801198, 866160, 890220, 949568, 1068264, 1154880, 1186960, 1335330, 1424352, 1602396, 1732320, 1780440, 2002995, 2136528, 2373920, 2670660, 2848704, 3204792, 3464640, 3560880, 4005990, 4273056, 4747840, 5341320, 6409584, 7121760, 8011980, 8546112, 10682640, 12819168, 14243520, 16023960, 21365280, 25638336, 32047920, 42730560, 64095840, 128191680]

約数ペア:

[(1, 128191680), (2, 64095840), (3, 42730560), (4, 32047920), (5, 25638336), (6, 21365280), (8, 16023960), (9, 14243520), (10, 12819168), (12, 10682640), (15, 8546112), (16, 8011980), (18, 7121760), (20, 6409584), (24, 5341320), (27, 4747840), (30, 4273056), (32, 4005990), (36, 3560880), (37, 3464640), (40, 3204792), (45, 2848704), (48, 2670660), (54, 2373920), (60, 2136528), (64, 2002995), (72, 1780440), (74, 1732320), (80, 1602396), (90, 1424352), (96, 1335330), (108, 1186960), (111, 1154880), (120, 1068264), (135, 949568), (144, 890220), (148, 866160), (160, 801198), (180, 712176), (185, 692928), (192, 667665), (216, 593480), (222, 577440), (240, 534132), (270, 474784), (288, 445110), (296, 433080), (320, 400599), (333, 384960), (360, 356088), (370, 346464), (401, 319680), (432, 296740), (444, 288720), (480, 267066), (540, 237392), (555, 230976), (576, 222555), (592, 216540), (666, 192480), (720, 178044), (740, 173232), (802, 159840), (864, 148370), (888, 144360), (960, 133533), (999, 128320), (1080, 118696), (1110, 115488), (1184, 108270), (1203, 106560), (1332, 96240), (1440, 89022), (1480, 86616), (1604, 79920), (1665, 76992), (1728, 74185), (1776, 72180), (1998, 64160), (2005, 63936), (2160, 59348), (2220, 57744), (2368, 54135), (2406, 53280), (2664, 48120), (2880, 44511), (2960, 43308), (3208, 39960), (3330, 38496), (3552, 36090), (3609, 35520), (3996, 32080), (4010, 31968), (4320, 29674), (4440, 28872), (4812, 26640), (4995, 25664), (5328, 24060), (5920, 21654), (6015, 21312), (6416, 19980), (6660, 19248), (7104, 18045), (7218, 17760), (7992, 16040), (8020, 15984), (8640, 14837), (8880, 14436), (9624, 13320), (9990, 12832), (10656, 12030), (10827, 11840)]