20189071378

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{4999}}^1$

素因数の和:5335

約数の個数: 64

約数和(自身を含む): 37324800000

約数和(自身を除く): 17135728622

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 239, 478, 497, 994, 1207, 1673, 2414, 3346, 4063, 4999, 8126, 8449, 9998, 16898, 16969, 28441, 33938, 34993, 56882, 69986, 84983, 118783, 169966, 237566, 288473, 354929, 576946, 594881, 709858, 1189762, 1194761, 2019311, 2389522, 2484503, 4038622, 4969006, 6033793, 8363327, 12067586, 16726654, 20310937, 40621874, 42236551, 84473102, 84828031, 142176559, 169656062, 284353118, 593796217, 1187592434, 1442076527, 2884153054, 10094535689, 20189071378]

約数ペア:

[(1, 20189071378), (2, 10094535689), (7, 2884153054), (14, 1442076527), (17, 1187592434), (34, 593796217), (71, 284353118), (119, 169656062), (142, 142176559), (238, 84828031), (239, 84473102), (478, 42236551), (497, 40621874), (994, 20310937), (1207, 16726654), (1673, 12067586), (2414, 8363327), (3346, 6033793), (4063, 4969006), (4999, 4038622), (8126, 2484503), (8449, 2389522), (9998, 2019311), (16898, 1194761), (16969, 1189762), (28441, 709858), (33938, 594881), (34993, 576946), (56882, 354929), (69986, 288473), (84983, 237566), (118783, 169966)]