15992120

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2311}}^1$

素因数の和:2495

約数の個数: 32

約数和(自身を含む): 36205920

約数和(自身を除く): 20213800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2311, 3460, 4622, 6920, 9244, 11555, 18488, 23110, 46220, 92440, 399803, 799606, 1599212, 1999015, 3198424, 3998030, 7996060, 15992120]

約数ペア:

[(1, 15992120), (2, 7996060), (4, 3998030), (5, 3198424), (8, 1999015), (10, 1599212), (20, 799606), (40, 399803), (173, 92440), (346, 46220), (692, 23110), (865, 18488), (1384, 11555), (1730, 9244), (2311, 6920), (3460, 4622)]