80959520

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1627}}^1$

素因数の和:1953

約数の個数: 48

約数和(自身を含む): 191999808

約数和(自身を除く): 111040288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 622, 1244, 1555, 1627, 2488, 3110, 3254, 4976, 6220, 6508, 8135, 9952, 12440, 13016, 16270, 24880, 26032, 32540, 49760, 52064, 65080, 130160, 260320, 505997, 1011994, 2023988, 2529985, 4047976, 5059970, 8095952, 10119940, 16191904, 20239880, 40479760, 80959520]

約数ペア:

[(1, 80959520), (2, 40479760), (4, 20239880), (5, 16191904), (8, 10119940), (10, 8095952), (16, 5059970), (20, 4047976), (32, 2529985), (40, 2023988), (80, 1011994), (160, 505997), (311, 260320), (622, 130160), (1244, 65080), (1555, 52064), (1627, 49760), (2488, 32540), (3110, 26032), (3254, 24880), (4976, 16270), (6220, 13016), (6508, 12440), (8135, 9952)]