1387680784

素因数分解:

$2^4\times 7^2\times {\mathrm{1770001}}^1$

素因数の和:1770023

約数の個数: 30

約数和(自身を含む): 3127593534

約数和(自身を除く): 1739912750

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 1770001, 3540002, 7080004, 12390007, 14160008, 24780014, 28320016, 49560028, 86730049, 99120056, 173460098, 198240112, 346920196, 693840392, 1387680784]

約数ペア:

[(1, 1387680784), (2, 693840392), (4, 346920196), (7, 198240112), (8, 173460098), (14, 99120056), (16, 86730049), (28, 49560028), (49, 28320016), (56, 24780014), (98, 14160008), (112, 12390007), (196, 7080004), (392, 3540002), (784, 1770001)]