78018880

素因数分解:

$2^6\times 5^1\times {\mathrm{243809}}^1$

素因数の和:243826

約数の個数: 28

約数和(自身を含む): 185783220

約数和(自身を除く): 107764340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 243809, 487618, 975236, 1219045, 1950472, 2438090, 3900944, 4876180, 7801888, 9752360, 15603776, 19504720, 39009440, 78018880]

約数ペア:

[(1, 78018880), (2, 39009440), (4, 19504720), (5, 15603776), (8, 9752360), (10, 7801888), (16, 4876180), (20, 3900944), (32, 2438090), (40, 1950472), (64, 1219045), (80, 975236), (160, 487618), (320, 243809)]