1318888960

素因数分解:

$2^9\times 5^1\times {\mathrm{515191}}^1$

素因数の和:515214

約数の個数: 40

約数和(自身を含む): 3162248496

約数和(自身を除く): 1843359536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 515191, 1030382, 2060764, 2575955, 4121528, 5151910, 8243056, 10303820, 16486112, 20607640, 32972224, 41215280, 65944448, 82430560, 131888896, 164861120, 263777792, 329722240, 659444480, 1318888960]

約数ペア:

[(1, 1318888960), (2, 659444480), (4, 329722240), (5, 263777792), (8, 164861120), (10, 131888896), (16, 82430560), (20, 65944448), (32, 41215280), (40, 32972224), (64, 20607640), (80, 16486112), (128, 10303820), (160, 8243056), (256, 5151910), (320, 4121528), (512, 2575955), (640, 2060764), (1280, 1030382), (2560, 515191)]