257272920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1297}}^1$

素因数の和:1362

約数の個数: 192

約数和(自身を含む): 911196000

約数和(自身を除く): 653923080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 29, 30, 36, 38, 40, 45, 57, 58, 60, 72, 76, 87, 90, 95, 114, 116, 120, 145, 152, 171, 174, 180, 190, 228, 232, 261, 285, 290, 342, 348, 360, 380, 435, 456, 522, 551, 570, 580, 684, 696, 760, 855, 870, 1044, 1102, 1140, 1160, 1297, 1305, 1368, 1653, 1710, 1740, 2088, 2204, 2280, 2594, 2610, 2755, 3306, 3420, 3480, 3891, 4408, 4959, 5188, 5220, 5510, 6485, 6612, 6840, 7782, 8265, 9918, 10376, 10440, 11020, 11673, 12970, 13224, 15564, 16530, 19455, 19836, 22040, 23346, 24643, 24795, 25940, 31128, 33060, 37613, 38910, 39672, 46692, 49286, 49590, 51880, 58365, 66120, 73929, 75226, 77820, 93384, 98572, 99180, 112839, 116730, 123215, 147858, 150452, 155640, 188065, 197144, 198360, 221787, 225678, 233460, 246430, 295716, 300904, 338517, 369645, 376130, 443574, 451356, 466920, 492860, 564195, 591432, 677034, 714647, 739290, 752260, 887148, 902712, 985720, 1108935, 1128390, 1354068, 1429294, 1478580, 1504520, 1692585, 1774296, 2143941, 2217870, 2256780, 2708136, 2858588, 2957160, 3385170, 3573235, 4287882, 4435740, 4513560, 5717176, 6431823, 6770340, 7146470, 8575764, 8871480, 10719705, 12863646, 13540680, 14292940, 17151528, 21439410, 25727292, 28585880, 32159115, 42878820, 51454584, 64318230, 85757640, 128636460, 257272920]

約数ペア:

[(1, 257272920), (2, 128636460), (3, 85757640), (4, 64318230), (5, 51454584), (6, 42878820), (8, 32159115), (9, 28585880), (10, 25727292), (12, 21439410), (15, 17151528), (18, 14292940), (19, 13540680), (20, 12863646), (24, 10719705), (29, 8871480), (30, 8575764), (36, 7146470), (38, 6770340), (40, 6431823), (45, 5717176), (57, 4513560), (58, 4435740), (60, 4287882), (72, 3573235), (76, 3385170), (87, 2957160), (90, 2858588), (95, 2708136), (114, 2256780), (116, 2217870), (120, 2143941), (145, 1774296), (152, 1692585), (171, 1504520), (174, 1478580), (180, 1429294), (190, 1354068), (228, 1128390), (232, 1108935), (261, 985720), (285, 902712), (290, 887148), (342, 752260), (348, 739290), (360, 714647), (380, 677034), (435, 591432), (456, 564195), (522, 492860), (551, 466920), (570, 451356), (580, 443574), (684, 376130), (696, 369645), (760, 338517), (855, 300904), (870, 295716), (1044, 246430), (1102, 233460), (1140, 225678), (1160, 221787), (1297, 198360), (1305, 197144), (1368, 188065), (1653, 155640), (1710, 150452), (1740, 147858), (2088, 123215), (2204, 116730), (2280, 112839), (2594, 99180), (2610, 98572), (2755, 93384), (3306, 77820), (3420, 75226), (3480, 73929), (3891, 66120), (4408, 58365), (4959, 51880), (5188, 49590), (5220, 49286), (5510, 46692), (6485, 39672), (6612, 38910), (6840, 37613), (7782, 33060), (8265, 31128), (9918, 25940), (10376, 24795), (10440, 24643), (11020, 23346), (11673, 22040), (12970, 19836), (13224, 19455), (15564, 16530)]