80607680

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2311}}^1$

素因数の和:2437

約数の個数: 56

約数和(自身を含む): 193791840

約数和(自身を除く): 113184160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1744, 2180, 2311, 3488, 4360, 4622, 6976, 8720, 9244, 11555, 17440, 18488, 23110, 34880, 36976, 46220, 73952, 92440, 147904, 184880, 251899, 369760, 503798, 739520, 1007596, 1259495, 2015192, 2518990, 4030384, 5037980, 8060768, 10075960, 16121536, 20151920, 40303840, 80607680]

約数ペア:

[(1, 80607680), (2, 40303840), (4, 20151920), (5, 16121536), (8, 10075960), (10, 8060768), (16, 5037980), (20, 4030384), (32, 2518990), (40, 2015192), (64, 1259495), (80, 1007596), (109, 739520), (160, 503798), (218, 369760), (320, 251899), (436, 184880), (545, 147904), (872, 92440), (1090, 73952), (1744, 46220), (2180, 36976), (2311, 34880), (3488, 23110), (4360, 18488), (4622, 17440), (6976, 11555), (8720, 9244)]