812031920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:428

約数の個数: 160

約数和(自身を含む): 2231107200

約数和(自身を除く): 1419075280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 101, 112, 140, 196, 202, 245, 280, 293, 343, 392, 404, 490, 505, 560, 586, 686, 707, 784, 808, 980, 1010, 1172, 1372, 1414, 1465, 1616, 1715, 1960, 2020, 2051, 2344, 2744, 2828, 2930, 3430, 3535, 3920, 4040, 4102, 4688, 4949, 5488, 5656, 5860, 6860, 7070, 8080, 8204, 9898, 10255, 11312, 11720, 13720, 14140, 14357, 16408, 19796, 20510, 23440, 24745, 27440, 28280, 28714, 29593, 32816, 34643, 39592, 41020, 49490, 56560, 57428, 59186, 69286, 71785, 79184, 82040, 98980, 100499, 114856, 118372, 138572, 143570, 147965, 164080, 173215, 197960, 200998, 207151, 229712, 236744, 277144, 287140, 295930, 346430, 395920, 401996, 414302, 473488, 502495, 554288, 574280, 591860, 692860, 803992, 828604, 1004990, 1035755, 1148560, 1183720, 1385720, 1450057, 1607984, 1657208, 2009980, 2071510, 2367440, 2771440, 2900114, 3314416, 4019960, 4143020, 5800228, 7250285, 8039920, 8286040, 10150399, 11600456, 14500570, 16572080, 20300798, 23200912, 29001140, 40601596, 50751995, 58002280, 81203192, 101503990, 116004560, 162406384, 203007980, 406015960, 812031920]

約数ペア:

[(1, 812031920), (2, 406015960), (4, 203007980), (5, 162406384), (7, 116004560), (8, 101503990), (10, 81203192), (14, 58002280), (16, 50751995), (20, 40601596), (28, 29001140), (35, 23200912), (40, 20300798), (49, 16572080), (56, 14500570), (70, 11600456), (80, 10150399), (98, 8286040), (101, 8039920), (112, 7250285), (140, 5800228), (196, 4143020), (202, 4019960), (245, 3314416), (280, 2900114), (293, 2771440), (343, 2367440), (392, 2071510), (404, 2009980), (490, 1657208), (505, 1607984), (560, 1450057), (586, 1385720), (686, 1183720), (707, 1148560), (784, 1035755), (808, 1004990), (980, 828604), (1010, 803992), (1172, 692860), (1372, 591860), (1414, 574280), (1465, 554288), (1616, 502495), (1715, 473488), (1960, 414302), (2020, 401996), (2051, 395920), (2344, 346430), (2744, 295930), (2828, 287140), (2930, 277144), (3430, 236744), (3535, 229712), (3920, 207151), (4040, 200998), (4102, 197960), (4688, 173215), (4949, 164080), (5488, 147965), (5656, 143570), (5860, 138572), (6860, 118372), (7070, 114856), (8080, 100499), (8204, 98980), (9898, 82040), (10255, 79184), (11312, 71785), (11720, 69286), (13720, 59186), (14140, 57428), (14357, 56560), (16408, 49490), (19796, 41020), (20510, 39592), (23440, 34643), (24745, 32816), (27440, 29593), (28280, 28714)]