16681120

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:913

約数の個数: 48

約数和(自身を含む): 39748968

約数和(自身を除く): 23067848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 761, 1096, 1370, 1522, 2192, 2740, 3044, 3805, 4384, 5480, 6088, 7610, 10960, 12176, 15220, 21920, 24352, 30440, 60880, 104257, 121760, 208514, 417028, 521285, 834056, 1042570, 1668112, 2085140, 3336224, 4170280, 8340560, 16681120]

約数ペア:

[(1, 16681120), (2, 8340560), (4, 4170280), (5, 3336224), (8, 2085140), (10, 1668112), (16, 1042570), (20, 834056), (32, 521285), (40, 417028), (80, 208514), (137, 121760), (160, 104257), (274, 60880), (548, 30440), (685, 24352), (761, 21920), (1096, 15220), (1370, 12176), (1522, 10960), (2192, 7610), (2740, 6088), (3044, 5480), (3805, 4384)]