2021893480

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{78857}}^1$

素因数の和:79509

約数の個数: 32

約数和(自身を含む): 4556415240

約数和(自身を除く): 2534521760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 78857, 157714, 315428, 394285, 630856, 788570, 1577140, 3154280, 50547337, 101094674, 202189348, 252736685, 404378696, 505473370, 1010946740, 2021893480]

約数ペア:

[(1, 2021893480), (2, 1010946740), (4, 505473370), (5, 404378696), (8, 252736685), (10, 202189348), (20, 101094674), (40, 50547337), (641, 3154280), (1282, 1577140), (2564, 788570), (3205, 630856), (5128, 394285), (6410, 315428), (12820, 157714), (25640, 78857)]