80998399520

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12347317}}^1$

素因数の和:12347373

約数の個数: 48

約数和(自身を含む): 196026020568

約数和(自身を除く): 115027621048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 12347317, 24694634, 49389268, 61736585, 98778536, 123473170, 197557072, 246946340, 395114144, 493892680, 506239997, 987785360, 1012479994, 1975570720, 2024959988, 2531199985, 4049919976, 5062399970, 8099839952, 10124799940, 16199679904, 20249599880, 40499199760, 80998399520]

約数ペア:

[(1, 80998399520), (2, 40499199760), (4, 20249599880), (5, 16199679904), (8, 10124799940), (10, 8099839952), (16, 5062399970), (20, 4049919976), (32, 2531199985), (40, 2024959988), (41, 1975570720), (80, 1012479994), (82, 987785360), (160, 506239997), (164, 493892680), (205, 395114144), (328, 246946340), (410, 197557072), (656, 123473170), (820, 98778536), (1312, 61736585), (1640, 49389268), (3280, 24694634), (6560, 12347317)]