72714280

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3643}}^1$

素因数の和:4153

約数の個数: 32

約数和(自身を含む): 163980000

約数和(自身を除く): 91265720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3643, 3992, 4990, 7286, 9980, 14572, 18215, 19960, 29144, 36430, 72860, 145720, 1817857, 3635714, 7271428, 9089285, 14542856, 18178570, 36357140, 72714280]

約数ペア:

[(1, 72714280), (2, 36357140), (4, 18178570), (5, 14542856), (8, 9089285), (10, 7271428), (20, 3635714), (40, 1817857), (499, 145720), (998, 72860), (1996, 36430), (2495, 29144), (3643, 19960), (3992, 18215), (4990, 14572), (7286, 9980)]