7980680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1571}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 18109440

約数和(自身を除く): 10128760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 1571, 2540, 3142, 5080, 6284, 7855, 12568, 15710, 31420, 62840, 199517, 399034, 798068, 997585, 1596136, 1995170, 3990340, 7980680]

約数ペア:

[(1, 7980680), (2, 3990340), (4, 1995170), (5, 1596136), (8, 997585), (10, 798068), (20, 399034), (40, 199517), (127, 62840), (254, 31420), (508, 15710), (635, 12568), (1016, 7855), (1270, 6284), (1571, 5080), (2540, 3142)]