81425344

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:115

約数の個数: 224

約数和(自身を含む): 229404672

約数和(自身を除く): 147979328

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 31, 32, 41, 44, 52, 56, 62, 64, 77, 82, 88, 91, 104, 112, 124, 143, 154, 164, 176, 182, 208, 217, 224, 248, 286, 287, 308, 328, 341, 352, 364, 403, 416, 434, 448, 451, 496, 533, 572, 574, 616, 656, 682, 704, 728, 806, 832, 868, 902, 992, 1001, 1066, 1144, 1148, 1232, 1271, 1312, 1364, 1456, 1612, 1736, 1804, 1984, 2002, 2132, 2288, 2296, 2387, 2464, 2542, 2624, 2728, 2821, 2912, 3157, 3224, 3472, 3608, 3731, 4004, 4264, 4433, 4576, 4592, 4774, 4928, 5084, 5456, 5642, 5824, 5863, 6314, 6448, 6944, 7216, 7462, 8008, 8528, 8866, 8897, 9152, 9184, 9548, 10168, 10912, 11284, 11726, 12628, 12896, 13888, 13981, 14432, 14924, 16016, 16523, 17056, 17732, 17794, 18368, 19096, 20336, 21824, 22568, 23452, 25256, 25792, 27962, 28864, 29848, 31031, 32032, 33046, 34112, 35464, 35588, 38192, 40672, 41041, 45136, 46904, 50512, 55924, 59696, 62062, 64064, 66092, 70928, 71176, 76384, 81344, 82082, 90272, 93808, 97867, 101024, 111848, 115661, 119392, 124124, 132184, 141856, 142352, 152768, 164164, 180544, 181753, 187616, 195734, 202048, 223696, 231322, 238784, 248248, 264368, 283712, 284704, 328328, 363506, 375232, 391468, 447392, 462644, 496496, 528736, 569408, 656656, 727012, 782936, 894784, 925288, 992992, 1057472, 1272271, 1313312, 1454024, 1565872, 1850576, 1985984, 2544542, 2626624, 2908048, 3131744, 3701152, 5089084, 5816096, 6263488, 7402304, 10178168, 11632192, 20356336, 40712672, 81425344]

約数ペア:

[(1, 81425344), (2, 40712672), (4, 20356336), (7, 11632192), (8, 10178168), (11, 7402304), (13, 6263488), (14, 5816096), (16, 5089084), (22, 3701152), (26, 3131744), (28, 2908048), (31, 2626624), (32, 2544542), (41, 1985984), (44, 1850576), (52, 1565872), (56, 1454024), (62, 1313312), (64, 1272271), (77, 1057472), (82, 992992), (88, 925288), (91, 894784), (104, 782936), (112, 727012), (124, 656656), (143, 569408), (154, 528736), (164, 496496), (176, 462644), (182, 447392), (208, 391468), (217, 375232), (224, 363506), (248, 328328), (286, 284704), (287, 283712), (308, 264368), (328, 248248), (341, 238784), (352, 231322), (364, 223696), (403, 202048), (416, 195734), (434, 187616), (448, 181753), (451, 180544), (496, 164164), (533, 152768), (572, 142352), (574, 141856), (616, 132184), (656, 124124), (682, 119392), (704, 115661), (728, 111848), (806, 101024), (832, 97867), (868, 93808), (902, 90272), (992, 82082), (1001, 81344), (1066, 76384), (1144, 71176), (1148, 70928), (1232, 66092), (1271, 64064), (1312, 62062), (1364, 59696), (1456, 55924), (1612, 50512), (1736, 46904), (1804, 45136), (1984, 41041), (2002, 40672), (2132, 38192), (2288, 35588), (2296, 35464), (2387, 34112), (2464, 33046), (2542, 32032), (2624, 31031), (2728, 29848), (2821, 28864), (2912, 27962), (3157, 25792), (3224, 25256), (3472, 23452), (3608, 22568), (3731, 21824), (4004, 20336), (4264, 19096), (4433, 18368), (4576, 17794), (4592, 17732), (4774, 17056), (4928, 16523), (5084, 16016), (5456, 14924), (5642, 14432), (5824, 13981), (5863, 13888), (6314, 12896), (6448, 12628), (6944, 11726), (7216, 11284), (7462, 10912), (8008, 10168), (8528, 9548), (8866, 9184), (8897, 9152)]