331347940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{215161}}^1$

素因数の和:215188

約数の個数: 48

約数和(自身を含む): 867533184

約数和(自身を除く): 536185244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 215161, 430322, 860644, 1075805, 1506127, 2151610, 2366771, 3012254, 4303220, 4733542, 6024508, 7530635, 9467084, 11833855, 15061270, 16567397, 23667710, 30122540, 33134794, 47335420, 66269588, 82836985, 165673970, 331347940]

約数ペア:

[(1, 331347940), (2, 165673970), (4, 82836985), (5, 66269588), (7, 47335420), (10, 33134794), (11, 30122540), (14, 23667710), (20, 16567397), (22, 15061270), (28, 11833855), (35, 9467084), (44, 7530635), (55, 6024508), (70, 4733542), (77, 4303220), (110, 3012254), (140, 2366771), (154, 2151610), (220, 1506127), (308, 1075805), (385, 860644), (770, 430322), (1540, 215161)]