12920223080

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2543351}}^1$

素因数の和:2543489

約数の個数: 32

約数和(自身を含む): 29299415040

約数和(自身を除く): 16379191960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 2543351, 5086702, 10173404, 12716755, 20346808, 25433510, 50867020, 101734040, 323005577, 646011154, 1292022308, 1615027885, 2584044616, 3230055770, 6460111540, 12920223080]

約数ペア:

[(1, 12920223080), (2, 6460111540), (4, 3230055770), (5, 2584044616), (8, 1615027885), (10, 1292022308), (20, 646011154), (40, 323005577), (127, 101734040), (254, 50867020), (508, 25433510), (635, 20346808), (1016, 12716755), (1270, 10173404), (2540, 5086702), (5080, 2543351)]