127670780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89909}}^1$

素因数の和:89989

約数の個数: 24

約数和(自身を含む): 271887840

約数和(自身を除く): 144217060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 89909, 179818, 359636, 449545, 899090, 1798180, 6383539, 12767078, 25534156, 31917695, 63835390, 127670780]

約数ペア:

[(1, 127670780), (2, 63835390), (4, 31917695), (5, 25534156), (10, 12767078), (20, 6383539), (71, 1798180), (142, 899090), (284, 449545), (355, 359636), (710, 179818), (1420, 89909)]