127207960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{289109}}^1$

素因数の和:289131

約数の個数: 32

約数和(自身を含む): 312238800

約数和(自身を除く): 185030840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 289109, 578218, 1156436, 1445545, 2312872, 2891090, 3180199, 5782180, 6360398, 11564360, 12720796, 15900995, 25441592, 31801990, 63603980, 127207960]

約数ペア:

[(1, 127207960), (2, 63603980), (4, 31801990), (5, 25441592), (8, 15900995), (10, 12720796), (11, 11564360), (20, 6360398), (22, 5782180), (40, 3180199), (44, 2891090), (55, 2312872), (88, 1445545), (110, 1156436), (220, 578218), (440, 289109)]