81748260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 288

約数和(自身を含む): 297198720

約数和(自身を除く): 215450460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 41, 44, 45, 53, 55, 57, 60, 66, 76, 82, 90, 95, 99, 106, 110, 114, 123, 132, 159, 164, 165, 171, 180, 190, 198, 205, 209, 212, 220, 228, 246, 265, 285, 318, 330, 342, 369, 380, 396, 410, 418, 451, 477, 492, 495, 530, 570, 583, 615, 627, 636, 660, 684, 738, 779, 795, 820, 836, 855, 902, 954, 990, 1007, 1045, 1060, 1140, 1166, 1230, 1254, 1353, 1476, 1558, 1590, 1710, 1749, 1804, 1845, 1881, 1908, 1980, 2014, 2090, 2173, 2255, 2332, 2337, 2385, 2460, 2508, 2706, 2915, 3021, 3116, 3135, 3180, 3420, 3498, 3690, 3762, 3895, 4028, 4059, 4180, 4346, 4510, 4674, 4770, 5035, 5247, 5412, 5830, 6042, 6270, 6519, 6765, 6996, 7011, 7380, 7524, 7790, 8118, 8569, 8692, 8745, 9020, 9063, 9348, 9405, 9540, 10070, 10494, 10865, 11077, 11660, 11685, 12084, 12540, 13038, 13530, 14022, 15105, 15580, 16236, 17138, 17490, 18126, 18810, 19557, 20140, 20295, 20988, 21730, 22154, 23370, 23903, 25707, 26076, 26235, 27060, 28044, 30210, 32595, 33231, 34276, 34980, 35055, 36252, 37620, 39114, 40590, 41287, 42845, 43460, 44308, 45315, 46740, 47806, 51414, 52470, 55385, 60420, 65190, 66462, 70110, 71709, 77121, 78228, 81180, 82574, 85690, 90630, 95612, 97785, 99693, 102828, 104940, 110770, 119515, 123861, 128535, 130380, 132924, 140220, 143418, 154242, 165148, 166155, 171380, 181260, 195570, 199386, 206435, 215127, 221540, 239030, 247722, 257070, 286836, 308484, 332310, 358545, 371583, 385605, 391140, 398772, 412870, 430254, 454157, 478060, 495444, 498465, 514140, 619305, 664620, 717090, 743166, 771210, 825740, 860508, 908314, 996930, 1075635, 1238610, 1362471, 1434180, 1486332, 1542420, 1816628, 1857915, 1993860, 2151270, 2270785, 2477220, 2724942, 3715830, 4087413, 4302540, 4541570, 5449884, 6812355, 7431660, 8174826, 9083140, 13624710, 16349652, 20437065, 27249420, 40874130, 81748260]

約数ペア:

[(1, 81748260), (2, 40874130), (3, 27249420), (4, 20437065), (5, 16349652), (6, 13624710), (9, 9083140), (10, 8174826), (11, 7431660), (12, 6812355), (15, 5449884), (18, 4541570), (19, 4302540), (20, 4087413), (22, 3715830), (30, 2724942), (33, 2477220), (36, 2270785), (38, 2151270), (41, 1993860), (44, 1857915), (45, 1816628), (53, 1542420), (55, 1486332), (57, 1434180), (60, 1362471), (66, 1238610), (76, 1075635), (82, 996930), (90, 908314), (95, 860508), (99, 825740), (106, 771210), (110, 743166), (114, 717090), (123, 664620), (132, 619305), (159, 514140), (164, 498465), (165, 495444), (171, 478060), (180, 454157), (190, 430254), (198, 412870), (205, 398772), (209, 391140), (212, 385605), (220, 371583), (228, 358545), (246, 332310), (265, 308484), (285, 286836), (318, 257070), (330, 247722), (342, 239030), (369, 221540), (380, 215127), (396, 206435), (410, 199386), (418, 195570), (451, 181260), (477, 171380), (492, 166155), (495, 165148), (530, 154242), (570, 143418), (583, 140220), (615, 132924), (627, 130380), (636, 128535), (660, 123861), (684, 119515), (738, 110770), (779, 104940), (795, 102828), (820, 99693), (836, 97785), (855, 95612), (902, 90630), (954, 85690), (990, 82574), (1007, 81180), (1045, 78228), (1060, 77121), (1140, 71709), (1166, 70110), (1230, 66462), (1254, 65190), (1353, 60420), (1476, 55385), (1558, 52470), (1590, 51414), (1710, 47806), (1749, 46740), (1804, 45315), (1845, 44308), (1881, 43460), (1908, 42845), (1980, 41287), (2014, 40590), (2090, 39114), (2173, 37620), (2255, 36252), (2332, 35055), (2337, 34980), (2385, 34276), (2460, 33231), (2508, 32595), (2706, 30210), (2915, 28044), (3021, 27060), (3116, 26235), (3135, 26076), (3180, 25707), (3420, 23903), (3498, 23370), (3690, 22154), (3762, 21730), (3895, 20988), (4028, 20295), (4059, 20140), (4180, 19557), (4346, 18810), (4510, 18126), (4674, 17490), (4770, 17138), (5035, 16236), (5247, 15580), (5412, 15105), (5830, 14022), (6042, 13530), (6270, 13038), (6519, 12540), (6765, 12084), (6996, 11685), (7011, 11660), (7380, 11077), (7524, 10865), (7790, 10494), (8118, 10070), (8569, 9540), (8692, 9405), (8745, 9348), (9020, 9063)]