1999485748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{22739}}^1$

素因数の和:22864

約数の個数: 48

約数和(自身を含む): 4011336000

約数和(自身を除く): 2011850252

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 89, 178, 247, 356, 494, 988, 1157, 1691, 2314, 3382, 4628, 6764, 21983, 22739, 43966, 45478, 87932, 90956, 295607, 432041, 591214, 864082, 1182428, 1728164, 2023771, 4047542, 5616533, 8095084, 11233066, 22466132, 26309023, 38451649, 52618046, 76903298, 105236092, 153806596, 499871437, 999742874, 1999485748]

約数ペア:

[(1, 1999485748), (2, 999742874), (4, 499871437), (13, 153806596), (19, 105236092), (26, 76903298), (38, 52618046), (52, 38451649), (76, 26309023), (89, 22466132), (178, 11233066), (247, 8095084), (356, 5616533), (494, 4047542), (988, 2023771), (1157, 1728164), (1691, 1182428), (2314, 864082), (3382, 591214), (4628, 432041), (6764, 295607), (21983, 90956), (22739, 87932), (43966, 45478)]