257922720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 288

約数和(自身を含む): 1011890880

約数和(自身を除く): 753968160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 30, 32, 33, 36, 38, 40, 44, 45, 48, 55, 57, 60, 66, 72, 76, 80, 88, 90, 95, 96, 99, 110, 114, 120, 132, 144, 152, 160, 165, 171, 176, 180, 190, 198, 209, 220, 228, 240, 264, 285, 288, 304, 330, 342, 352, 360, 380, 396, 418, 440, 456, 480, 495, 528, 570, 608, 627, 660, 684, 720, 760, 792, 836, 855, 857, 880, 912, 990, 1045, 1056, 1140, 1254, 1320, 1368, 1440, 1520, 1584, 1672, 1710, 1714, 1760, 1824, 1881, 1980, 2090, 2280, 2508, 2571, 2640, 2736, 3040, 3135, 3168, 3344, 3420, 3428, 3762, 3960, 4180, 4285, 4560, 5016, 5142, 5280, 5472, 6270, 6688, 6840, 6856, 7524, 7713, 7920, 8360, 8570, 9120, 9405, 9427, 10032, 10284, 12540, 12855, 13680, 13712, 15048, 15426, 15840, 16283, 16720, 17140, 18810, 18854, 20064, 20568, 25080, 25710, 27360, 27424, 28281, 30096, 30852, 32566, 33440, 34280, 37620, 37708, 38565, 41136, 47135, 48849, 50160, 51420, 56562, 60192, 61704, 65132, 68560, 75240, 75416, 77130, 81415, 82272, 84843, 94270, 97698, 100320, 102840, 113124, 123408, 130264, 137120, 141405, 146547, 150480, 150832, 154260, 162830, 169686, 179113, 188540, 195396, 205680, 226248, 244245, 246816, 260528, 282810, 293094, 300960, 301664, 308520, 325660, 339372, 358226, 377080, 390792, 411360, 424215, 452496, 488490, 521056, 537339, 565620, 586188, 617040, 651320, 678744, 716452, 732735, 754160, 781584, 848430, 895565, 904992, 976980, 1074678, 1131240, 1172376, 1234080, 1302640, 1357488, 1432904, 1465470, 1508320, 1563168, 1612017, 1696860, 1791130, 1953960, 2149356, 2262480, 2344752, 2605280, 2686695, 2714976, 2865808, 2930940, 3224034, 3393720, 3582260, 3907920, 4298712, 4524960, 4689504, 5373390, 5731616, 5861880, 6448068, 6787440, 7164520, 7815840, 8060085, 8597424, 10746780, 11723760, 12896136, 13574880, 14329040, 16120170, 17194848, 21493560, 23447520, 25792272, 28658080, 32240340, 42987120, 51584544, 64480680, 85974240, 128961360, 257922720]

約数ペア:

[(1, 257922720), (2, 128961360), (3, 85974240), (4, 64480680), (5, 51584544), (6, 42987120), (8, 32240340), (9, 28658080), (10, 25792272), (11, 23447520), (12, 21493560), (15, 17194848), (16, 16120170), (18, 14329040), (19, 13574880), (20, 12896136), (22, 11723760), (24, 10746780), (30, 8597424), (32, 8060085), (33, 7815840), (36, 7164520), (38, 6787440), (40, 6448068), (44, 5861880), (45, 5731616), (48, 5373390), (55, 4689504), (57, 4524960), (60, 4298712), (66, 3907920), (72, 3582260), (76, 3393720), (80, 3224034), (88, 2930940), (90, 2865808), (95, 2714976), (96, 2686695), (99, 2605280), (110, 2344752), (114, 2262480), (120, 2149356), (132, 1953960), (144, 1791130), (152, 1696860), (160, 1612017), (165, 1563168), (171, 1508320), (176, 1465470), (180, 1432904), (190, 1357488), (198, 1302640), (209, 1234080), (220, 1172376), (228, 1131240), (240, 1074678), (264, 976980), (285, 904992), (288, 895565), (304, 848430), (330, 781584), (342, 754160), (352, 732735), (360, 716452), (380, 678744), (396, 651320), (418, 617040), (440, 586188), (456, 565620), (480, 537339), (495, 521056), (528, 488490), (570, 452496), (608, 424215), (627, 411360), (660, 390792), (684, 377080), (720, 358226), (760, 339372), (792, 325660), (836, 308520), (855, 301664), (857, 300960), (880, 293094), (912, 282810), (990, 260528), (1045, 246816), (1056, 244245), (1140, 226248), (1254, 205680), (1320, 195396), (1368, 188540), (1440, 179113), (1520, 169686), (1584, 162830), (1672, 154260), (1710, 150832), (1714, 150480), (1760, 146547), (1824, 141405), (1881, 137120), (1980, 130264), (2090, 123408), (2280, 113124), (2508, 102840), (2571, 100320), (2640, 97698), (2736, 94270), (3040, 84843), (3135, 82272), (3168, 81415), (3344, 77130), (3420, 75416), (3428, 75240), (3762, 68560), (3960, 65132), (4180, 61704), (4285, 60192), (4560, 56562), (5016, 51420), (5142, 50160), (5280, 48849), (5472, 47135), (6270, 41136), (6688, 38565), (6840, 37708), (6856, 37620), (7524, 34280), (7713, 33440), (7920, 32566), (8360, 30852), (8570, 30096), (9120, 28281), (9405, 27424), (9427, 27360), (10032, 25710), (10284, 25080), (12540, 20568), (12855, 20064), (13680, 18854), (13712, 18810), (15048, 17140), (15426, 16720), (15840, 16283)]