3997960

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 9077760

約数和(自身を除く): 5079800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 787, 1016, 1270, 1574, 2540, 3148, 3935, 5080, 6296, 7870, 15740, 31480, 99949, 199898, 399796, 499745, 799592, 999490, 1998980, 3997960]

約数ペア:

[(1, 3997960), (2, 1998980), (4, 999490), (5, 799592), (8, 499745), (10, 399796), (20, 199898), (40, 99949), (127, 31480), (254, 15740), (508, 7870), (635, 6296), (787, 5080), (1016, 3935), (1270, 3148), (1574, 2540)]