291236620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{3821}}^1$

素因数の和:3970

約数の個数: 48

約数和(自身を含む): 634390848

約数和(自身を除く): 343154228

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 103, 148, 185, 206, 370, 412, 515, 740, 1030, 2060, 3811, 3821, 7622, 7642, 15244, 15284, 19055, 19105, 38110, 38210, 76220, 76420, 141377, 282754, 393563, 565508, 706885, 787126, 1413770, 1574252, 1967815, 2827540, 3935630, 7871260, 14561831, 29123662, 58247324, 72809155, 145618310, 291236620]

約数ペア:

[(1, 291236620), (2, 145618310), (4, 72809155), (5, 58247324), (10, 29123662), (20, 14561831), (37, 7871260), (74, 3935630), (103, 2827540), (148, 1967815), (185, 1574252), (206, 1413770), (370, 787126), (412, 706885), (515, 565508), (740, 393563), (1030, 282754), (2060, 141377), (3811, 76420), (3821, 76220), (7622, 38210), (7642, 38110), (15244, 19105), (15284, 19055)]