71981280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 288

約数和(自身を含む): 289808064

約数和(自身を除く): 217826784

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 37, 40, 42, 45, 48, 56, 60, 63, 70, 72, 74, 80, 84, 90, 96, 105, 111, 112, 120, 126, 140, 144, 148, 160, 168, 180, 185, 193, 210, 222, 224, 240, 252, 259, 280, 288, 296, 315, 333, 336, 360, 370, 386, 420, 444, 480, 504, 518, 555, 560, 579, 592, 630, 666, 672, 720, 740, 772, 777, 840, 888, 965, 1008, 1036, 1110, 1120, 1158, 1184, 1260, 1295, 1332, 1351, 1440, 1480, 1544, 1554, 1665, 1680, 1737, 1776, 1930, 2016, 2072, 2220, 2316, 2331, 2520, 2590, 2664, 2702, 2895, 2960, 3088, 3108, 3330, 3360, 3474, 3552, 3860, 3885, 4053, 4144, 4440, 4632, 4662, 5040, 5180, 5328, 5404, 5790, 5920, 6176, 6216, 6660, 6755, 6948, 7141, 7720, 7770, 8106, 8288, 8685, 8880, 9264, 9324, 10080, 10360, 10656, 10808, 11580, 11655, 12159, 12432, 13320, 13510, 13896, 14282, 15440, 15540, 16212, 17370, 17760, 18528, 18648, 20265, 20720, 21423, 21616, 23160, 23310, 24318, 24864, 26640, 27020, 27792, 28564, 30880, 31080, 32424, 34740, 35705, 37296, 40530, 41440, 42846, 43232, 46320, 46620, 48636, 49987, 53280, 54040, 55584, 57128, 60795, 62160, 64269, 64848, 69480, 71410, 74592, 81060, 85692, 92640, 93240, 97272, 99974, 107115, 108080, 114256, 121590, 124320, 128538, 129696, 138960, 142820, 149961, 162120, 171384, 186480, 194544, 199948, 214230, 216160, 228512, 243180, 249935, 257076, 277920, 285640, 299922, 321345, 324240, 342768, 372960, 389088, 399896, 428460, 449883, 486360, 499870, 514152, 571280, 599844, 642690, 648480, 685536, 749805, 799792, 856920, 899766, 972720, 999740, 1028304, 1142560, 1199688, 1285380, 1499610, 1599584, 1713840, 1799532, 1945440, 1999480, 2056608, 2249415, 2399376, 2570760, 2999220, 3427680, 3599064, 3998960, 4498830, 4798752, 5141520, 5998440, 7198128, 7997920, 8997660, 10283040, 11996880, 14396256, 17995320, 23993760, 35990640, 71981280]

約数ペア:

[(1, 71981280), (2, 35990640), (3, 23993760), (4, 17995320), (5, 14396256), (6, 11996880), (7, 10283040), (8, 8997660), (9, 7997920), (10, 7198128), (12, 5998440), (14, 5141520), (15, 4798752), (16, 4498830), (18, 3998960), (20, 3599064), (21, 3427680), (24, 2999220), (28, 2570760), (30, 2399376), (32, 2249415), (35, 2056608), (36, 1999480), (37, 1945440), (40, 1799532), (42, 1713840), (45, 1599584), (48, 1499610), (56, 1285380), (60, 1199688), (63, 1142560), (70, 1028304), (72, 999740), (74, 972720), (80, 899766), (84, 856920), (90, 799792), (96, 749805), (105, 685536), (111, 648480), (112, 642690), (120, 599844), (126, 571280), (140, 514152), (144, 499870), (148, 486360), (160, 449883), (168, 428460), (180, 399896), (185, 389088), (193, 372960), (210, 342768), (222, 324240), (224, 321345), (240, 299922), (252, 285640), (259, 277920), (280, 257076), (288, 249935), (296, 243180), (315, 228512), (333, 216160), (336, 214230), (360, 199948), (370, 194544), (386, 186480), (420, 171384), (444, 162120), (480, 149961), (504, 142820), (518, 138960), (555, 129696), (560, 128538), (579, 124320), (592, 121590), (630, 114256), (666, 108080), (672, 107115), (720, 99974), (740, 97272), (772, 93240), (777, 92640), (840, 85692), (888, 81060), (965, 74592), (1008, 71410), (1036, 69480), (1110, 64848), (1120, 64269), (1158, 62160), (1184, 60795), (1260, 57128), (1295, 55584), (1332, 54040), (1351, 53280), (1440, 49987), (1480, 48636), (1544, 46620), (1554, 46320), (1665, 43232), (1680, 42846), (1737, 41440), (1776, 40530), (1930, 37296), (2016, 35705), (2072, 34740), (2220, 32424), (2316, 31080), (2331, 30880), (2520, 28564), (2590, 27792), (2664, 27020), (2702, 26640), (2895, 24864), (2960, 24318), (3088, 23310), (3108, 23160), (3330, 21616), (3360, 21423), (3474, 20720), (3552, 20265), (3860, 18648), (3885, 18528), (4053, 17760), (4144, 17370), (4440, 16212), (4632, 15540), (4662, 15440), (5040, 14282), (5180, 13896), (5328, 13510), (5404, 13320), (5790, 12432), (5920, 12159), (6176, 11655), (6216, 11580), (6660, 10808), (6755, 10656), (6948, 10360), (7141, 10080), (7720, 9324), (7770, 9264), (8106, 8880), (8288, 8685)]