81113760

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:660

約数の個数: 288

約数和(自身を含む): 341228160

約数和(自身を除く): 260114400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 160, 168, 180, 182, 195, 208, 210, 224, 234, 240, 252, 260, 273, 280, 288, 312, 315, 336, 360, 364, 390, 416, 420, 455, 468, 480, 504, 520, 546, 560, 585, 619, 624, 630, 672, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1120, 1170, 1238, 1248, 1260, 1365, 1440, 1456, 1560, 1638, 1680, 1820, 1857, 1872, 2016, 2080, 2184, 2340, 2476, 2520, 2730, 2912, 3095, 3120, 3276, 3360, 3640, 3714, 3744, 4095, 4333, 4368, 4680, 4952, 5040, 5460, 5571, 6190, 6240, 6552, 7280, 7428, 8047, 8190, 8666, 8736, 9285, 9360, 9904, 10080, 10920, 11142, 12380, 12999, 13104, 14560, 14856, 16094, 16380, 17332, 18570, 18720, 19808, 21665, 21840, 22284, 24141, 24760, 25998, 26208, 27855, 29712, 32188, 32760, 34664, 37140, 38997, 40235, 43330, 43680, 44568, 48282, 49520, 51996, 55710, 56329, 59424, 64376, 64995, 65520, 69328, 72423, 74280, 77994, 80470, 86660, 89136, 96564, 99040, 103992, 111420, 112658, 120705, 128752, 129990, 131040, 138656, 144846, 148560, 155988, 160940, 168987, 173320, 178272, 193128, 194985, 207984, 222840, 225316, 241410, 257504, 259980, 281645, 289692, 297120, 311976, 321880, 337974, 346640, 362115, 386256, 389970, 415968, 445680, 450632, 482820, 506961, 519960, 563290, 579384, 623952, 643760, 675948, 693280, 724230, 772512, 779940, 844935, 891360, 901264, 965640, 1013922, 1039920, 1126580, 1158768, 1247904, 1287520, 1351896, 1448460, 1559880, 1689870, 1802528, 1931280, 2027844, 2079840, 2253160, 2317536, 2534805, 2703792, 2896920, 3119760, 3379740, 3862560, 4055688, 4506320, 5069610, 5407584, 5793840, 6239520, 6759480, 8111376, 9012640, 10139220, 11587680, 13518960, 16222752, 20278440, 27037920, 40556880, 81113760]

約数ペア:

[(1, 81113760), (2, 40556880), (3, 27037920), (4, 20278440), (5, 16222752), (6, 13518960), (7, 11587680), (8, 10139220), (9, 9012640), (10, 8111376), (12, 6759480), (13, 6239520), (14, 5793840), (15, 5407584), (16, 5069610), (18, 4506320), (20, 4055688), (21, 3862560), (24, 3379740), (26, 3119760), (28, 2896920), (30, 2703792), (32, 2534805), (35, 2317536), (36, 2253160), (39, 2079840), (40, 2027844), (42, 1931280), (45, 1802528), (48, 1689870), (52, 1559880), (56, 1448460), (60, 1351896), (63, 1287520), (65, 1247904), (70, 1158768), (72, 1126580), (78, 1039920), (80, 1013922), (84, 965640), (90, 901264), (91, 891360), (96, 844935), (104, 779940), (105, 772512), (112, 724230), (117, 693280), (120, 675948), (126, 643760), (130, 623952), (140, 579384), (144, 563290), (156, 519960), (160, 506961), (168, 482820), (180, 450632), (182, 445680), (195, 415968), (208, 389970), (210, 386256), (224, 362115), (234, 346640), (240, 337974), (252, 321880), (260, 311976), (273, 297120), (280, 289692), (288, 281645), (312, 259980), (315, 257504), (336, 241410), (360, 225316), (364, 222840), (390, 207984), (416, 194985), (420, 193128), (455, 178272), (468, 173320), (480, 168987), (504, 160940), (520, 155988), (546, 148560), (560, 144846), (585, 138656), (619, 131040), (624, 129990), (630, 128752), (672, 120705), (720, 112658), (728, 111420), (780, 103992), (819, 99040), (840, 96564), (910, 89136), (936, 86660), (1008, 80470), (1040, 77994), (1092, 74280), (1120, 72423), (1170, 69328), (1238, 65520), (1248, 64995), (1260, 64376), (1365, 59424), (1440, 56329), (1456, 55710), (1560, 51996), (1638, 49520), (1680, 48282), (1820, 44568), (1857, 43680), (1872, 43330), (2016, 40235), (2080, 38997), (2184, 37140), (2340, 34664), (2476, 32760), (2520, 32188), (2730, 29712), (2912, 27855), (3095, 26208), (3120, 25998), (3276, 24760), (3360, 24141), (3640, 22284), (3714, 21840), (3744, 21665), (4095, 19808), (4333, 18720), (4368, 18570), (4680, 17332), (4952, 16380), (5040, 16094), (5460, 14856), (5571, 14560), (6190, 13104), (6240, 12999), (6552, 12380), (7280, 11142), (7428, 10920), (8047, 10080), (8190, 9904), (8666, 9360), (8736, 9285)]